diff --git a/resources/assets/js/app.js b/resources/assets/js/app.js
index a767c80..f339a57 100644
--- a/resources/assets/js/app.js
+++ b/resources/assets/js/app.js
@@ -1,13 +1,13 @@
 // run once the document is ready
 $(document).ready(function() {
-    $('footer').stickyFooter({ content: '#page-content' });
-    $(window).load(function() { $(this).trigger('resize'); });
+    $("footer").stickyFooter({ content: "#page-content" });
+    $(window).load(function() { $(this).trigger("resize"); });
 
     switch (SiteVars.page) {
-        case '':
+        case "":
             subscriptionFormInit();
             break;
-        case 'contact':
+        case "contact":
             contactFormInit();
             break;
     }
diff --git a/resources/assets/js/contact.js b/resources/assets/js/contact.js
index 396a7d9..c376afd 100644
--- a/resources/assets/js/contact.js
+++ b/resources/assets/js/contact.js
@@ -1,55 +1,59 @@
 // contact form functionality
 function contactFormInit() {
-    var $form = $('#contact-form'),
-        $input = $form.find(':input'),
-        $notify = $('#notification'),
-        contact = {},
+    const $form = $("#contact-form"),
+        $input = $form.find(":input"),
+        $notify = $("#notification");
+
+    let contact = {},
         submitting = false;
 
-    var getContactData = function() {
+    const getContactData = function() {
         contact = {
-            name:    $('#name').val(),
-            email:   $('#email').val(),
-            message: $('#message').val(),
-            _token:  $('#token').val()
+            name: $("#name").val(),
+            email: $("#email").val(),
+            message: $("#message").val(),
+            _token: $("#token").val()
         };
     };
 
-    $('#submit').on('click', function(e) {
+    $("#submit").on("click", function(e) {
+        const $submit = $(this);
+
         e.preventDefault();
-        var $submit = $(this);
 
         if (!submitting) {
             submitting = true;
             getContactData();
 
             $.ajax({
-                type: 'POST',
-                url:  '/contact-submit',
+                type: "POST",
+                url: "/contact-submit",
                 data: contact
             }).always(function(response) {
-                $form.find('.error').removeClass('error');
-                $notify.removeClass('visible');
+                let responseJSON, errors, prop;
 
-                if (response === 'success') {
-                    $input.attr('disabled', true);
-                    $submit.addClass('disabled');
-                    $notify.text('Thanks for your message!').addClass('success').addClass('visible');
+                $form.find(".error").removeClass("error");
+                $notify.removeClass("visible");
+
+                if (response === "success") {
+                    $input.attr("disabled", true);
+                    $submit.addClass("disabled");
+                    $notify.text("Thanks for your message!").addClass("success").addClass("visible");
                 } else {
-                    var responseJSON = response.responseJSON,
-                        errors = 0;
+                    responseJSON = response.responseJSON;
+                    errors = 0;
 
                     // add the error class to fields that haven't been filled out
-                    for (var prop in responseJSON) {
+                    for (prop in responseJSON) {
                         if (responseJSON.hasOwnProperty(prop)) {
-                            $('#' + prop).addClass('error');
+                            $("#" + prop).addClass("error");
                             errors++;
                         }
                     }
 
                     if (errors > 0) {
-                        $notify.find('span').text(errors);
-                        $notify.addClass('visible');
+                        $notify.find("span").text(errors);
+                        $notify.addClass("visible");
                     }
 
                     // re-enable submitting
diff --git a/resources/assets/js/dashboard.js b/resources/assets/js/dashboard.js
index 35b20c8..cecea2a 100644
--- a/resources/assets/js/dashboard.js
+++ b/resources/assets/js/dashboard.js
@@ -3,157 +3,154 @@ jQuery.fn.reverse = [].reverse;
 
 // show the confirmation modal and run the supplied command if confirm is pressed
 function askConfirmation(message, command) {
-    var $confirmationModal = $('#confirmation-modal'),
-        $heading = $confirmationModal.find('.panel-heading'),
-        $cancelButton = $confirmationModal.find('.btn.cancel-button'),
-        $confirmButton = $confirmationModal.find('.btn.confirm-button'),
+    const $confirmationModal = $("#confirmation-modal"),
+        $heading = $confirmationModal.find(".panel-heading"),
+        $cancelButton = $confirmationModal.find(".btn.cancel-button"),
+        $confirmButton = $confirmationModal.find(".btn.confirm-button"),
         fadeTime = 250;
 
     // close the confirmation modal and unbind its events
-    var closeConfirmationModal = function() {
+    const closeConfirmationModal = function() {
         // unbind events
-        $(document).off('keyup', escapeModal);
-        $cancelButton.off('click', closeConfirmationModal);
-        $confirmButton.off('click', confirmModal);
+        $(document).off("keyup", escapeModal);
+        $cancelButton.off("click", closeConfirmationModal);
+        $confirmButton.off("click", confirmModal);
 
         // clear the heading
         $heading.empty();
 
         // hide the modal
         $confirmationModal.css({ opacity: 0 });
-        setTimeout(function() { $confirmationModal.css({ visibility: 'hidden' }); }, fadeTime);
+        setTimeout(function() { $confirmationModal.css({ visibility: "hidden" }); }, fadeTime);
     };
 
     // close the modal if the escape button is pressed
-    var escapeModal = function(e) {
-        if (e.keyCode == 27)
-            closeConfirmationModal();
+    const escapeModal = function(e) {
+        if (e.keyCode === 27) { closeConfirmationModal(); }
     };
 
     // functionality to run when clicking the confirm button
-    var confirmModal = function() {
+    const confirmModal = function() {
         command();
         closeConfirmationModal();
     };
 
     // hide the modal when the cancel button is pressed
-    $cancelButton.on('click', closeConfirmationModal);
+    $cancelButton.on("click", closeConfirmationModal);
 
     // hide the modal when the escape key is pressed
-    $(document).on('keyup', escapeModal);
+    $(document).on("keyup", escapeModal);
 
     // run the command and hide the modal when the confirm button is pressed
-    $confirmButton.on('click', confirmModal);
+    $confirmButton.on("click", confirmModal);
 
     // set the heading with the supplied message
     $heading.text(message);
 
     // show the confirmation modal
     $confirmationModal.css({
-        visibility: 'visible',
+        visibility: "visible",
         opacity: 1
     });
 }
 
 // show the alert modal and display the provided message until accept is pressed
 function showAlert(message, command) {
-    var $alertModal = $('#alert-modal'),
-        $message = $alertModal.find('.message'),
-        $acceptButton = $alertModal.find('.btn.accept-button'),
+    const $alertModal = $("#alert-modal"),
+        $message = $alertModal.find(".message"),
+        $acceptButton = $alertModal.find(".btn.accept-button"),
         fadeTime = 250;
 
     // close the alert modal and unbind its events
-    var closeAlertModal = function() {
+    const closeAlertModal = function() {
         // unbind events
-        $(document).off('keyup', escapeModal);
-        $acceptButton.off('click', closeAlertModal);
+        $(document).off("keyup", escapeModal);
+        $acceptButton.off("click", closeAlertModal);
 
         // clear the message
         $message.empty();
 
         // hide the modal
         $alertModal.css({ opacity: 0 });
-        setTimeout(function() { $alertModal.css({ visibility: 'hidden' }); }, fadeTime);
+        setTimeout(function() { $alertModal.css({ visibility: "hidden" }); }, fadeTime);
 
         // if a command was passed run it now
-        if (command !== undefined)
-            command();
+        if (command !== undefined) { command(); }
     };
 
     // close the modal if the escape button is pressed
-    var escapeModal = function(e) {
-         if (e.keyCode == 27)
-             closeAlertModal();
+    const escapeModal = function(e) {
+        if (e.keyCode === 27) { closeAlertModal(); }
     };
 
     // hide the modal when the escape key is pressed
-    $(document).on('keyup', escapeModal);
+    $(document).on("keyup", escapeModal);
 
     // hide the modal when the accept button is pressed
-    $acceptButton.on('click', closeAlertModal);
+    $acceptButton.on("click", closeAlertModal);
 
     // set the message with the supplied message
     $message.text(message);
 
     // show the alert modal
     $alertModal.css({
-        visibility: 'visible',
+        visibility: "visible",
         opacity: 1
     });
 }
 
 // initialize edit list functionality
 function editListInit() {
-    var editList = document.getElementById('edit-list'),
+    const editList = document.getElementById("edit-list"),
         $editList = $(editList),
-        model = $editList.data('model');
+        model = $editList.data("model");
 
     // initialize new button functionality
-    var newButtonInit = function() {
-        var $newButton = $('.btn.new-button');
+    const newButtonInit = function() {
+        const $newButton = $(".btn.new-button");
 
-        $newButton.on('click', function() {
-            window.location.href = '/dashboard/' + model + '-edit/new';
+        $newButton.on("click", function() {
+            window.location.href = "/dashboard/" + model + "-edit/new";
         });
     };
 
     // initialize edit button functionality
-    var editButtonInit = function() {
-        var $editButtons = $('.btn.edit-button');
+    const editButtonInit = function() {
+        const $editButtons = $(".btn.edit-button");
 
-        $editButtons.on('click', function() {
-            var $this = $(this),
-                $listItem = $this.closest('.list-group-item'),
-                itemId = $listItem.data('id');
+        $editButtons.on("click", function() {
+            const $this = $(this),
+                $listItem = $this.closest(".list-group-item"),
+                itemId = $listItem.data("id");
 
             // go to the edit page
-            window.location.href = '/dashboard/' + model + '-edit/' + itemId;
+            window.location.href = "/dashboard/" + model + "-edit/" + itemId;
         });
     };
 
     // initialize delete button functionality
-    var deleteButtonInit = function() {
-        var $deleteButtons = $('.btn.delete-button');
+    const deleteButtonInit = function() {
+        const $deleteButtons = $(".btn.delete-button");
 
-        $deleteButtons.on('click', function() {
-            var $this = $(this),
-                $listItem = $this.closest('.list-group-item'),
-                itemId = $listItem.data('id');
+        $deleteButtons.on("click", function() {
+            const $this = $(this),
+                $listItem = $this.closest(".list-group-item"),
+                itemId = $listItem.data("id");
 
-            askConfirmation('Are you sure you want to delete this?', function() {
+            askConfirmation("Are you sure you want to delete this?", function() {
                 $.ajax({
-                    type: 'DELETE',
-                    url:  '/dashboard/delete',
+                    type: "DELETE",
+                    url: "/dashboard/delete",
                     data: {
-                        model:   model,
-                        id:      itemId,
-                        _token:  $('#token').val()
+                        model: model,
+                        id: itemId,
+                        _token: $("#token").val()
                     }
                 }).always(function(response) {
-                    if (response === 'success') {
+                    if (response === "success") {
                         $listItem.slideUp(150, function() { $listItem.remove(); });
                     } else {
-                        showAlert('ERROR: Failed to delete record');
+                        showAlert("ERROR: Failed to delete record");
                     }
                 });
             });
@@ -161,32 +158,32 @@ function editListInit() {
     };
 
     // initialize sort functionality if data-sort is set
-    var sortRowInit = function() {
-        if ($editList.attr('data-sort')) {
-            var sortCol = $editList.data('sort'),
-                sortOrder = {};
+    const sortRowInit = function() {
+        let sortOrder = {}, sortCol, sortable;
 
-            var sortable = Sortable.create(editList, {
-                handle: '.sort-icon',
+        if ($editList.attr("data-sort")) {
+            sortCol = $editList.data("sort");
+
+            sortable = Sortable.create(editList, {
+                handle: ".sort-icon",
                 onUpdate: function() {
                     // update the sortOrder object based on the updated order
-                    $editList.find('.list-group-item').reverse().each(function(index) {
-                        var thisId = $(this).data('id');
-                        sortOrder[thisId] = index;
+                    $editList.find(".list-group-item").reverse().each(function(index) {
+                        sortOrder[$(this).data("id")] = index;
                     });
 
                     $.ajax({
-                        type: 'POST',
-                        url:  '/dashboard/reorder',
+                        type: "POST",
+                        url: "/dashboard/reorder",
                         data: {
-                            model:  model,
-                            order:  sortOrder,
+                            model: model,
+                            order: sortOrder,
                             column: sortCol,
-                            _token: $('#token').val()
+                            _token: $("#token").val()
                         }
                     }).always(function(response) {
-                        if (response !== 'success') {
-                            showAlert('ERROR: Sorting failed', function() {
+                        if (response !== "success") {
+                            showAlert("ERROR: Sorting failed", function() {
                                 document.location.reload(true);
                             });
                         }
@@ -203,41 +200,44 @@ function editListInit() {
 }
 
 function editItemInit() {
-    var $editItem = $('#edit-item'),
-        $submit = $('#submit'),
-        $backButton = $('#back'),
-        $textInputs = $('.text-input'),
-        $dateTimePickers = $('.date-time-picker'),
-        $mkdEditors = $('.mkd-editor'),
-        $imgUpload = $('#image-upload'),
-        $token = $('#_token'),
-        $spinner = $('#loading-modal'),
+    const $editItem = $("#edit-item"),
+        $submit = $("#submit"),
+        $backButton = $("#back"),
+        $textInputs = $(".text-input"),
+        $dateTimePickers = $(".date-time-picker"),
+        $mkdEditors = $(".mkd-editor"),
+        $imgUpload = $("#image-upload"),
+        $token = $("#_token"),
+        $spinner = $("#loading-modal"),
         fadeTime = 250,
-        model = $editItem.data('model'),
-        id = $editItem.data('id'),
-        allowTimes = [],
+        model = $editItem.data("model"),
+        id = $editItem.data("id");
+
+    let allowTimes = [],
         simplemde = [],
         formData = {},
-        submitting = false;
+        submitting = false,
+        hours,
+        minutes;
 
     // show the loading modal
-    var showLoadingModal = function() {
+    const showLoadingModal = function() {
         $spinner.css({
-            visibility: 'visible',
+            visibility: "visible",
             opacity: 1
         });
     };
 
     // hide the loading modal
-    var hideLoadingModal = function() {
+    const hideLoadingModal = function() {
         $spinner.css({ opacity: 0 });
-        setTimeout(function() { $spinner.css({ visibility: 'hidden' }); }, fadeTime);
+        setTimeout(function() { $spinner.css({ visibility: "hidden" }); }, fadeTime);
     };
 
     // fill the formData object with data from all the form fields
-    var getFormData = function() {
+    const getFormData = function() {
         // function to add a column and value to the formData object
-        var addFormData = function(column, value) {
+        const addFormData = function(column, value) {
             // add the value to a key with the column name
             formData[column] = value;
 
@@ -258,8 +258,8 @@ function editItemInit() {
 
         // add values from the contents of text-input class elements
         $textInputs.each(function() {
-            var $this = $(this),
-                column = $this.attr('id'),
+            const $this = $(this),
+                column = $this.attr("id"),
                 value = $this.val();
 
             addFormData(column, value);
@@ -267,52 +267,54 @@ function editItemInit() {
 
         // add values from the contents of date-time-picker class elements
         $dateTimePickers.each(function() {
-            var $this = $(this),
-                column = $this.attr('id'),
-                value = $this.val() + ':00';
+            const $this = $(this),
+                column = $this.attr("id"),
+                value = $this.val() + ":00";
 
             addFormData(column, value);
         });
 
         // add values from the contents of the markdown editor for mkd-editor class elements
         $mkdEditors.each(function() {
-            var $this = $(this),
-                column = $this.attr('id'),
+            const $this = $(this),
+                column = $this.attr("id"),
                 value = simplemde[column].value();
 
             addFormData(column, value);
         });
     };
 
-    var uploadImage = function(row_id) {
+    const uploadImage = function(row_id) {
+        let file;
+
         // functionality to run on success
-        var returnSuccess = function() {
+        const returnSuccess = function() {
             hideLoadingModal();
-            window.location.href = '/dashboard/' + model;
+            window.location.href = "/dashboard/" + model;
         };
 
         // add the image from the image upload box for image-upload class elements
-        if ($imgUpload.length && $imgUpload.val() !== '') {
-            var file = new FormData();
+        if ($imgUpload.length && $imgUpload.val() !== "") {
+            file = new FormData();
 
             // add the file, id and model to the formData variable
-            file.append('file', $imgUpload[0].files[0]);
-            file.append('id', row_id);
-            file.append('model', model);
+            file.append("file", $imgUpload[0].files[0]);
+            file.append("id", row_id);
+            file.append("model", model);
 
             $.ajax({
-                type:        'POST',
-                url:         '/dashboard/image-upload',
-                data:        file,
+                type: "POST",
+                url: "/dashboard/image-upload",
+                data: file,
                 processData: false,
                 contentType: false,
-                beforeSend:  function(xhr) { xhr.setRequestHeader('X-CSRF-TOKEN', $token.val()); }
+                beforeSend: function(xhr) { xhr.setRequestHeader("X-CSRF-TOKEN", $token.val()); }
             }).always(function(response) {
-                if (response === 'success') {
+                if (response === "success") {
                     returnSuccess();
                 } else {
                     hideLoadingModal();
-                    showAlert('ERROR: Failed to upload image');
+                    showAlert("ERROR: Failed to upload image");
                     submitting = false;
                 }
             });
@@ -322,16 +324,16 @@ function editItemInit() {
     };
 
     // allow start time selection to start on the hour and every 15 minutes after
-    for (var hours=0; hours<=23; hours++) {
-        for (var minutes=0; minutes<=3; minutes++) {
-            allowTimes.push(hours + ':' + (minutes === 0 ? '00' : minutes * 15));
+    for (hours = 0; hours <= 23; hours++) {
+        for (minutes = 0; minutes <= 3; minutes++) {
+            allowTimes.push(hours + ":" + (minutes === 0 ? "00" : minutes * 15));
         }
     }
 
     // enable the datetimepicker for each element with the date-time-picker class
     $dateTimePickers.each(function() {
         $(this).datetimepicker({
-            format: 'Y-m-d H:i',
+            format: "Y-m-d H:i",
             allowTimes: allowTimes,
             step: 15
         });
@@ -339,46 +341,46 @@ function editItemInit() {
 
     // enable the markdown editor for each element with the mkd-editor class
     $mkdEditors.each(function() {
-        var $this = $(this),
-            column = $this.attr('id');
+        const $this = $(this),
+            column = $this.attr("id");
 
         simplemde[column] = new SimpleMDE({
             element: this,
             toolbar: [
-                'bold',
-                'italic',
-                '|',
-                'heading-1',
-                'heading-2',
-                'heading-3',
-                '|',
-                'quote',
-                'unordered-list',
-                'ordered-list',
-                'link'
+                "bold",
+                "italic",
+                "|",
+                "heading-1",
+                "heading-2",
+                "heading-3",
+                "|",
+                "quote",
+                "unordered-list",
+                "ordered-list",
+                "link"
             ],
-            blockStyles: { italic: '_' },
+            blockStyles: { italic: "_" },
             autoDownloadFontAwesome: false,
             tabSize: 4,
             spellChecker: false
         });
 
         setTimeout(function() {
-            simplemde[column].value($this.attr('value'));
+            simplemde[column].value($this.attr("value"));
         }, 100);
     });
 
     // initialize back button
-    $backButton.on('click', function() {
+    $backButton.on("click", function() {
         if (!submitting) {
-            askConfirmation('Cancel and return to the ' + model + ' list?', function() {
-                window.location.href = '/dashboard/' + model;
+            askConfirmation("Cancel and return to the " + model + " list?", function() {
+                window.location.href = "/dashboard/" + model;
             });
         }
     });
 
     // initialize submit button
-    $submit.on('click', function() {
+    $submit.on("click", function() {
         if (!submitting) {
             submitting = true;
 
@@ -390,15 +392,15 @@ function editItemInit() {
 
             // submit the update
             $.ajax({
-                type: 'POST',
-                url:  '/dashboard/edit',
+                type: "POST",
+                url: "/dashboard/edit",
                 data: formData
             }).always(function(response) {
                 if (/^id:[0-9][0-9]*$/.test(response)) {
-                    uploadImage(response.replace(/^id:/, ''));
+                    uploadImage(response.replace(/^id:/, ""));
                 } else {
                     hideLoadingModal();
-                    showAlert('ERROR: Failed to update record');
+                    showAlert("ERROR: Failed to update record");
                     submitting = false;
                 }
             });
@@ -408,9 +410,9 @@ function editItemInit() {
 
 // run once the document is ready
 $(document).ready(function() {
-    if ($('#edit-list').length) {
+    if ($("#edit-list").length) {
         editListInit();
-    } else if ($('#edit-item').length) {
+    } else if ($("#edit-item").length) {
         editItemInit();
     }
 });
diff --git a/resources/assets/js/site-vars.js b/resources/assets/js/site-vars.js
index faa586d..e57b915 100644
--- a/resources/assets/js/site-vars.js
+++ b/resources/assets/js/site-vars.js
@@ -1,3 +1,3 @@
-var SiteVars = {
-    page: location.href.replace(/^[^:]*:\/\/[^\/]*\//, '').replace(/(\/|#|\?).*/, '')
+let SiteVars = {
+    page: location.href.replace(/^[^:]*:\/\/[^\/]*\//, "").replace(/(\/|#|\?).*/, "")
 };
diff --git a/resources/assets/js/subscription.js b/resources/assets/js/subscription.js
index d2808cd..a30577e 100644
--- a/resources/assets/js/subscription.js
+++ b/resources/assets/js/subscription.js
@@ -1,58 +1,61 @@
 // subscription form functionality
 function subscriptionFormInit() {
-    var $form = $('#subscription-form'),
-        $input = $form.find(':input'),
-        $notify = $('#notification'),
-        subscribe = {},
+    const $form = $("#subscription-form"),
+        $input = $form.find(":input"),
+        $notify = $("#notification");
+
+    let subscribe = {},
         submitting = false;
 
-    var getSubscribeData = function() {
+    const getSubscribeData = function() {
         subscribe = {
-            name:    $('#name').val(),
-            email:   $('#email').val(),
-            address: $('#address').val(),
-            _token:  $('#token').val()
+            name: $("#name").val(),
+            email: $("#email").val(),
+            address: $("#address").val(),
+            _token: $("#token").val()
         };
     };
 
-    $('#submit').on('click', function(e) {
+    $("#submit").on("click", function(e) {
         e.preventDefault();
-        var $submit = $(this);
 
         if (!submitting) {
             submitting = true;
             getSubscribeData();
 
             $.ajax({
-                type: 'POST',
-                url:  '/subscription-submit',
+                type: "POST",
+                url: "/subscription-submit",
                 data: subscribe
             }).always(function(response) {
-                $form.find('.error').removeClass('error');
-                $notify.removeClass('visible').removeClass('error');
+                let responseJSON, errors, prop;
 
-                if (response === 'success') {
-                    $form.addClass('success');
+                $form.find(".error").removeClass("error");
+                $notify.removeClass("visible").removeClass("error");
+
+                if (response === "success") {
+                    $form.addClass("success");
 
                     setTimeout(function() {
-                        $notify.text('Thanks for subscribing!').addClass('success').addClass('visible');
+                        $notify.text("Thanks for subscribing!").addClass("success").addClass("visible");
                         $input.fadeOut(150);
                     }, 1000);
                 } else {
-                    var responseJSON = response.responseJSON,
-                        errors = 0;
+                    responseJSON = response.responseJSON;
+                    errors = 0;
 
                     // add the error class to fields that haven't been filled out
-                    for (var prop in responseJSON) {
+                    for (prop in responseJSON) {
                         if (responseJSON.hasOwnProperty(prop)) {
-                            $('#' + prop).addClass('error');
+                            $("#" + prop).addClass("error");
                             errors++;
                         }
                     }
 
                     // if there are no errors with form fields then there must have been an API error
-                    if (errors === 0)
-                        $notify.text('An error occurred. Are you already subscribed?').addClass('error').addClass('visible');
+                    if (errors === 0) {
+                        $notify.text("An error occurred. Are you already subscribed?").addClass("error").addClass("visible");
+                    }
 
                     // re-enable submitting
                     submitting = false;