diff --git a/.gitignore b/.gitignore
index 2700de4a..cf6e349e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -84,4 +84,4 @@ foo.js
 hello.js
 plugins/c9.docker/containers/ci/files/github_c9_newclient
 plugins/c9.docker/containers/shared/files/plugins/salesforce*
-security-audit.log
+security-audit.log
\ No newline at end of file
diff --git a/build/browser_extensions/chrome/manifest.json b/build/browser_extensions/chrome/manifest.json
index 7939147b..8c44b02e 100644
--- a/build/browser_extensions/chrome/manifest.json
+++ b/build/browser_extensions/chrome/manifest.json
@@ -1,7 +1,7 @@
 {
    "app": {
       "launch": {
-         "web_url": "http://c9.io/"
+         "web_url": "http://c9.io/#1page"
       },
       "urls": [
         "https://c9.io/", "https://www.c9.io/", "https://ide.c9.io/", 
diff --git a/configs/client-default.js b/configs/client-default.js
index a9b3d229..372a64ed 100644
--- a/configs/client-default.js
+++ b/configs/client-default.js
@@ -321,7 +321,82 @@ module.exports = function(options) {
         "plugins/c9.ide.language.javascript/javascript",
         "plugins/c9.ide.language.javascript.immediate/immediate",
         "plugins/c9.ide.language.javascript.infer/jsinfer",
-        "plugins/c9.ide.language.javascript.tern/tern",
+        {
+            packagePath: "plugins/c9.ide.language.javascript.tern/tern",
+            plugins: [
+                {
+                    name: "angular",
+                    path: "tern/plugin/angular",
+                    enabled: true,
+                    hidden: false,
+                },
+                {
+                    name: "doc_comment",
+                    path: "tern/plugin/doc_comment",
+                    enabled: true,
+                    hidden: true,
+                },
+                {
+                    name: "es_modules",
+                    path: "tern/plugin/es_modules",
+                    enabled: true,
+                    hidden: true,
+                },
+                {
+                    name: "modules",
+                    path: "tern/plugin/modules",
+                    enabled: true,
+                    hidden: true,
+                },
+                {
+                    name: "node",
+                    path: "tern/plugin/node",
+                    enabled: true,
+                    hidden: false,
+                },
+                {
+                    name: "requirejs",
+                    path: "tern/plugin/requirejs",
+                    enabled: true,
+                    hidden: false,
+                },
+                {
+                    name: "architect_resolver",
+                    path: "./architect_resolver_worker",
+                    enabled: true,
+                    hidden: true,
+                },
+            ],
+            defs: [{
+                name: "ecma5",
+                enabled: true,
+                experimental: false,
+                firstClass: true,
+                path: "lib/tern/defs/ecma5.json"
+            }, {
+                name: "jQuery",
+                enabled: true,
+                experimental: false,
+                path: "lib/tern/defs/jquery.json"
+            }, {
+                name: "browser",
+                enabled: true,
+                experimental: false,
+                firstClass: true,
+                path: "lib/tern/defs/browser.json"
+            }, {
+                name: "underscore",
+                enabled: false,
+                experimental: false,
+                path: "lib/tern/defs/underscore.json"
+            }, {
+                name: "chai",
+                enabled: false,
+                experimental: false,
+                path: "lib/tern/defs/chai.json"
+            }]
+        },
+        "plugins/c9.ide.language.javascript.tern/ui",
         "plugins/c9.ide.language.javascript.tern/architect_resolver",
         "plugins/c9.ide.language.javascript.eslint/eslint",
         {
diff --git a/node_modules/ace_tree/lib/ace_tree/mouse/default_handlers.js b/node_modules/ace_tree/lib/ace_tree/mouse/default_handlers.js
index 83fbcd47..b568a458 100644
--- a/node_modules/ace_tree/lib/ace_tree/mouse/default_handlers.js
+++ b/node_modules/ace_tree/lib/ace_tree/mouse/default_handlers.js
@@ -172,7 +172,8 @@ function DefaultHandlers(mouseHandler) {
     };
     
     this.onMouseUp = function(ev) {
-        if (this.isMousePressed) return;
+        if (this.isMousePressed == 2) return; // wait until release capture
+        this.isMousePressed = false;
         var pos = ev.getDocumentPosition();
         var node = this.editor.provider.findItemAtOffset(pos.y);
         if (node && this.$clickNode && this.$clickNode == node) {
diff --git a/node_modules/ace_tree/lib/ace_tree/mouse/mouse_handler.js b/node_modules/ace_tree/lib/ace_tree/mouse/mouse_handler.js
index 77cf4235..acaf0b49 100644
--- a/node_modules/ace_tree/lib/ace_tree/mouse/mouse_handler.js
+++ b/node_modules/ace_tree/lib/ace_tree/mouse/mouse_handler.js
@@ -87,7 +87,7 @@ var MouseHandler = function(editor) {
         this.x = ev.x;
         this.y = ev.y;
         
-        this.isMousePressed = true;
+        this.isMousePressed = 2;
 
         // do not move textarea during selection
         var renderer = this.editor.renderer;
diff --git a/package.json b/package.json
index 53fa1370..b280674a 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
     "name": "c9",
     "description": "New Cloud9 Client",
-    "version": "3.1.1129",
+    "version": "3.1.1160",
     "author": "Ajax.org B.V. <info@ajax.org>",
     "private": true,
     "main": "bin/c9",
@@ -34,8 +34,8 @@
         "rusha": "~0.7.2",
         "send": "~0.1.4",
         "simple-mime": "~0.0.8",
-        "tern": "git://github.com/cloud9ide/tern.git#749e64a0f0fed91f883ff055df37b4bfc9f2d980",
-        "tern_from_ts": "git://github.com/cloud9ide/tern_from_ts.git#6a0107e602b0d044fe1753533cf31f52cf5fb95a",
+        "tern": "git://github.com/cloud9ide/tern.git#39015d544d4c00c7899fea4c95c2e5bc2720e68e",
+        "tern_from_ts": "git://github.com/cloud9ide/tern_from_ts.git#84d51dcb9b16b126a206789d4d4237cde2801fe4",
         "through": "2.2.0",
         "tmp": "~0.0.20",
         "uglify-js": "2.4.16",
@@ -56,23 +56,23 @@
         "c9"
     ],
     "c9plugins": {
-        "c9.ide.language": "#c1cdf70cf0",
+        "c9.ide.language": "#8e73db4417",
         "c9.ide.language.css": "#be07d72209",
-        "c9.ide.language.generic": "#7a1150bc50",
+        "c9.ide.language.generic": "#9d6f268f8d",
         "c9.ide.language.html": "#9be847c0ce",
         "c9.ide.language.html.diff": "#24f3608d26",
         "c9.ide.language.javascript": "#1a0b1584c2",
         "c9.ide.language.javascript.immediate": "#c8b1e5767a",
         "c9.ide.language.javascript.eslint": "#3127e1eba1",
-        "c9.ide.language.javascript.tern": "#f9ba3813d7",
-        "c9.ide.language.javascript.infer": "#c88fc6e405",
+        "c9.ide.language.javascript.tern": "#45e5f5b0e5",
+        "c9.ide.language.javascript.infer": "#8664d42920",
         "c9.ide.language.jsonalyzer": "#47a64de05d",
-        "c9.ide.collab": "#10c224f9b8",
+        "c9.ide.collab": "#e2411fc12b",
         "c9.ide.local": "#a6e689e33b",
         "c9.ide.find": "#e33fbaed2f",
         "c9.ide.find.infiles": "#c3bf17286d",
         "c9.ide.find.replace": "#8cbce45290",
-        "c9.ide.run.debug": "#8b77a8379d",
+        "c9.ide.run.debug": "#7dfe32f721",
         "c9.automate": "#47e2c429c9",
         "c9.ide.ace.emmet": "#6dc4585e02",
         "c9.ide.ace.gotoline": "#a8ff07c8f4",
@@ -83,7 +83,7 @@
         "c9.ide.ace.stripws": "#cf0f42ac59",
         "c9.ide.behaviors": "#db32109ebc",
         "c9.ide.closeconfirmation": "#cee4674141",
-        "c9.ide.configuration": "#a9066299a2",
+        "c9.ide.configuration": "#e3c90dcd96",
         "c9.ide.dialog.wizard": "#7667ec79a8",
         "c9.ide.fontawesome": "#781602c5d8",
         "c9.ide.format": "#5ec97fb083",
@@ -91,12 +91,12 @@
         "c9.ide.imgeditor": "#612e75ef4f",
         "c9.ide.immediate": "#a962119bec",
         "c9.ide.installer": "#0fde9f0067",
-        "c9.ide.language.python": "#e30d1a9a50",
+        "c9.ide.language.python": "#a4ded9bab0",
         "c9.ide.language.go": "#a023f576ae",
         "c9.ide.mount": "#befb8188d5",
-        "c9.ide.navigate": "#38ae100ea1",
+        "c9.ide.navigate": "#1fbb7cd53b",
         "c9.ide.newresource": "#981a408a7b",
-        "c9.ide.openfiles": "#358ac94915",
+        "c9.ide.openfiles": "#2ae85a9e33",
         "c9.ide.preview": "#8f87ff2f6a",
         "c9.ide.preview.browser": "#c5b9a129de",
         "c9.ide.preview.markdown": "#bc846e1562",
@@ -105,15 +105,15 @@
         "c9.ide.recentfiles": "#7c099abf40",
         "c9.ide.remote": "#301d2ab519",
         "c9.ide.processlist": "#2b12cd1bdd",
-        "c9.ide.run": "#453aa5f604",
+        "c9.ide.run": "#f03e4b018e",
         "c9.ide.run.build": "#0598fff697",
-        "c9.ide.run.debug.xdebug": "#5553240abe",
+        "c9.ide.run.debug.xdebug": "#a1b39e0ac4",
         "c9.ide.save": "#9461acd953",
-        "c9.ide.scm": "#930a9e6f00",
+        "c9.ide.scm": "#ca3c94b84f",
         "c9.ide.terminal.monitor": "#a0d1f02991",
-        "c9.ide.test": "#8f21f662d3",
+        "c9.ide.test": "#a282ec1619",
         "c9.ide.test.mocha": "#fc053b23d2",
-        "c9.ide.theme.flat": "#92cda0fb40",
+        "c9.ide.theme.flat": "#81dadeee55",
         "c9.ide.threewaymerge": "#229382aa0b",
         "c9.ide.undo": "#b028bcb4d5",
         "c9.ide.upload": "#0bd010d3dc",
diff --git a/plugins/c9.ide.help/help.xml b/plugins/c9.ide.help/help.xml
index f4cd6c88..0050847e 100644
--- a/plugins/c9.ide.help/help.xml
+++ b/plugins/c9.ide.help/help.xml
@@ -21,13 +21,13 @@
             </div>
             <div class="c9Staff">
                 <p textselect="true">
-                    Arron Bailiss, Bas de Wachter, Dana Ivan, Fabian Jakobs, Harutyun Amirjanyan,
-                    Ivar Pruijn, Justin Dray, Lennart Kats, Luca Cipriani,
+                    Alex Brausewetter, Arron Bailiss, Bas de Wachter, Dana Ivan, 
+                    Fabian Jakobs, Harutyun Amirjanyan, Ivar Pruijn, Justin Dray, Lennart Kats, Luca Cipriani,
                     Mostafa Eweda, Matthijs van Henten, Nikolai Onken, Suraj Biyani, Tim Robinson, Ruben Daniels
                 </p>
             </div>
             <div class="c9Copyright">
-                <p>&#169; 2010 — 2015 Cloud9 Inc. All rights reserved</p>
+                <p>&#169; 2010 — 2016 Cloud9 Inc. All rights reserved</p>
             </div>
         </div>
     </a:window>
diff --git a/plugins/c9.ide.keys/panel.js b/plugins/c9.ide.keys/panel.js
index 00e1580e..a2d1cf0f 100644
--- a/plugins/c9.ide.keys/panel.js
+++ b/plugins/c9.ide.keys/panel.js
@@ -26,6 +26,7 @@ define(function(require, exports, module) {
         var plugin = new Panel("Ajax.org", main.consumes, {
             index: options.index || 300,
             caption: "Commands",
+            buttonCSSClass: "commands",
             minWidth: 150,
             autohide: true,
             where: options.where || "left"
diff --git a/plugins/c9.ide.layout.classic/themes/default-flat-dark.less b/plugins/c9.ide.layout.classic/themes/default-flat-dark.less
index 72acde7b..9ba1ada6 100644
--- a/plugins/c9.ide.layout.classic/themes/default-flat-dark.less
+++ b/plugins/c9.ide.layout.classic/themes/default-flat-dark.less
@@ -798,7 +798,7 @@
 @gutter-tooltip-dark-shadow: 1px 1px 6px darken(rgba(0, 0, 0, 0.8), @darken-chrome);
 @gutter-tooltip-dark-background: darken(#FFF399, @darken-chrome);
 @gutter-tooltip-dark-border: black;
-@gutter-tooltip-dark-color: darken(#e0e3e8, @darken-chrome);
+@gutter-tooltip-dark-color: darken(#333, @darken-chrome);
 @gutter-tooltip-dark-font-smoothing: true;
 
 // Splitter
diff --git a/plugins/c9.ide.preferences/experimental.js b/plugins/c9.ide.preferences/experimental.js
index 541deb98..2b348dc8 100644
--- a/plugins/c9.ide.preferences/experimental.js
+++ b/plugins/c9.ide.preferences/experimental.js
@@ -55,8 +55,6 @@ define(function(require, exports, module) {
         
         /***** Methods *****/
         
-        // =0 means the value should be set to 0 to disable otherwise it is enabled
-        // =1 means the value should be set to 1 to enable otherwise it is disabled
         var found = {};
         function addExperiment(name, defaultValue, caption){
             var uniqueId = name.replace(/\//g, "-");
@@ -105,6 +103,7 @@ define(function(require, exports, module) {
         plugin.on("unload", function() {
             loaded = false;
             drawn = false;
+            hasAlerted = false;
             intro = null;
         });
         
diff --git a/plugins/c9.ide.server/views/flat-load-screen.html b/plugins/c9.ide.server/views/flat-load-screen.html
index 533499e4..f59a85e1 100644
--- a/plugins/c9.ide.server/views/flat-load-screen.html
+++ b/plugins/c9.ide.server/views/flat-load-screen.html
@@ -34,7 +34,7 @@
         "Stop cursing, start coding",
         "GET /this/workspace#loaded",
         "Use our Vim mode for extra addictive effect!",
-        "Not your grandfather's IDE",
+        "Not your grandmother's IDE",
         "Now made with 20% more cloud!",
         "Literally makes your laptop cooler",
     ];
diff --git a/plugins/c9.ide.tree/tree.js b/plugins/c9.ide.tree/tree.js
index 6ba0063e..f130e2b4 100644
--- a/plugins/c9.ide.tree/tree.js
+++ b/plugins/c9.ide.tree/tree.js
@@ -46,6 +46,7 @@ define(function(require, exports, module) {
             index: options.index || 100,
             caption: "Workspace",
             panelCSSClass: "workspace_files",
+            buttonCSSClass: "workspace",
             minWidth: 130,
             where: options.where || "left"
         });
@@ -1586,4 +1587,4 @@ define(function(require, exports, module) {
             tree: plugin
         });
     }
-});
\ No newline at end of file
+});
diff --git a/plugins/c9.vfs.server/vfs.server.js b/plugins/c9.vfs.server/vfs.server.js
index 5a117cf3..f2da3e24 100644
--- a/plugins/c9.vfs.server/vfs.server.js
+++ b/plugins/c9.vfs.server/vfs.server.js
@@ -331,7 +331,7 @@ function plugin(options, imports, register) {
                 .end(function() {});
                 
             user.lastVfsAccess = Date.now();
-            user.save(function() {});
+            user.save && user.save(function() {});
         }
     }
 
diff --git a/scripts/install-sdk.sh b/scripts/install-sdk.sh
index 70f0eb11..38448df0 100755
--- a/scripts/install-sdk.sh
+++ b/scripts/install-sdk.sh
@@ -110,8 +110,9 @@ updateCore() {
     fi
     
     # without this git merge fails on windows
-    mv ./scripts/install-sdk.sh  ./scripts/.install-sdk-tmp.sh 
-    cp ./scripts/.install-sdk-tmp.sh ./scripts/install-sdk.sh
+    mv ./scripts/install-sdk.sh  './scripts/.#install-sdk-tmp.sh'
+    rm ./scripts/.install-sdk-tmp.sh 
+    cp './scripts/.#install-sdk-tmp.sh' ./scripts/install-sdk.sh
     git checkout -- ./scripts/install-sdk.sh
 
     git remote add c9 https://github.com/c9/core 2> /dev/null || true
diff --git a/server.js b/server.js
index 8c24b8e6..704ea32b 100755
--- a/server.js
+++ b/server.js
@@ -46,7 +46,7 @@ shortcuts.localdev = shortcuts.onlinedev.concat([
 shortcuts.odev = shortcuts.onlinedev; // For backwards compatibility, if you see this in 2016 remove this line
 var delayLoadConfigs = [
     // Services that are usually not immediately needed
-    "preview", "user-content", "api", "apps-proxy", "worker",
+    "preview", "user-content", "apps-proxy", "worker", "homepage",
     // Services that are very slow to load, blocking others
     "profile",
 ];