Move all layout files to a "v1" directory.

public/v1/js/ff/install/.htaccess

@@ -0,0 +1 @@
+Options -Indexes

public/v1/js/ff/install/index.js

@@ -0,0 +1,106 @@
+/*
+ * index.js
+ * Copyright (c) 2018 thegrumpydictator@gmail.com
+ *
+ * This file is part of Firefly III.
+ *
+ * Firefly III is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Firefly III is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Firefly III. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+$(function () {
+    "use strict";
+    //var status = $('#status-box');
+    // set HTML to "migrating...":
+    startMigration();
+});
+
+function startMigration() {
+    $('#status-box').html('<i class="fa fa-spin fa-spinner"></i> Setting up DB...');
+    $.post(migrateUri, {_token: token}).done(function (data) {
+        if(data.error === false) {
+            startPassport();
+        } else {
+            displaySoftFail(data.message);
+        }
+
+    }).fail(function () {
+        $('#status-box').html('<i class="fa fa-warning"></i> Migration failed! See log files :(');
+    });
+}
+
+/**
+ *
+ */
+function startPassport() {
+    $('#status-box').html('<i class="fa fa-spin fa-spinner"></i> Setting up OAuth2...');
+    $.post(keysUri, {_token: token}).done(function (data) {
+        if(data.error === false) {
+            startUpgrade();
+        } else {
+            displaySoftFail(data.message);
+        }
+
+    }).fail(function () {
+        $('#status-box').html('<i class="fa fa-warning"></i> OAuth2 failed! See log files :(');
+    });
+}
+
+/**
+ *
+ */
+function startUpgrade() {
+    $('#status-box').html('<i class="fa fa-spin fa-spinner"></i> Upgrading database...');
+    $.post(upgradeUri, {_token: token}).done(function (data) {
+        if(data.error === false) {
+            startVerify();
+        } else {
+            displaySoftFail(data.message);
+        }
+    }).fail(function () {
+        $('#status-box').html('<i class="fa fa-warning"></i> Upgrade failed! See log files :(');
+    });
+}
+
+/**
+ *
+ */
+function startVerify() {
+    $('#status-box').html('<i class="fa fa-spin fa-spinner"></i> Verify database integrity...');
+    $.post(verifyUri, {_token: token}).done(function (data) {
+        if(data.error === false) {
+            completeDone();
+        } else {
+            displaySoftFail(data.message);
+        }
+    }).fail(function () {
+        $('#status-box').html('<i class="fa fa-warning"></i> Verification failed! See log files :(');
+    });
+}
+
+/**
+ *
+ */
+function completeDone() {
+    $('#status-box').html('<i class="fa fa-thumbs-up"></i> Installation + upgrade complete! Wait to be redirected...');
+    setTimeout(function () {
+        window.location = homeUri;
+    }, 3000);
+}
+
+function displaySoftFail(message) {
+    $('#status-box').html('<i class="fa fa-warning"></i> ' + message + '<br /><br />Please read the ' +
+                          '<a href="http://firefly-iii.readthedocs.io/en/latest/support/faq.html#i-get-an-error-during-the-automatic-installation-and-upgrade">' +
+                          'official documentation</a> about this, and upgrade by hand.');
+}