diff --git a/node_modules/ace/lib/ace/ext/emmet.js b/node_modules/ace/lib/ace/ext/emmet.js
index 3c5d6344..6276ce98 100644
--- a/node_modules/ace/lib/ace/ext/emmet.js
+++ b/node_modules/ace/lib/ace/ext/emmet.js
@@ -343,11 +343,9 @@ var keymap = {
 
 var editorProxy = new AceEmmetEditor();
 exports.commands = new HashHandler();
-exports.runEmmetCommand = function(editor) {
+exports.runEmmetCommand = function runEmmetCommand(editor) {
     try {
         editorProxy.setupContext(editor);
-        if (editorProxy.getSyntax() == "php")
-            return false;
         var actions = emmet.require("actions");
     
         if (this.action == "expand_abbreviation_with_tab") {
@@ -369,6 +367,10 @@ exports.runEmmetCommand = function(editor) {
         
         var result = actions.run(this.action, editorProxy);
     } catch(e) {
+        if (!emmet) {
+            load(runEmmetCommand.bind(this, editor));
+            return true;
+        }
         editor._signal("changeStatus", typeof e == "string" ? e : e.message);
         console.log(e);
         result = false;
@@ -401,6 +403,22 @@ exports.isSupportedMode = function(mode) {
     return /css|less|scss|sass|stylus|html|php|twig|ejs|handlebars/.test(id);
 };
 
+exports.isAvailable = function(editor, command) {
+    if (/(evaluate_math_expression|expand_abbreviation)$/.test(command))
+        return true;
+    var mode = editor.session.$mode;
+    var isSupported = exports.isSupportedMode(mode);
+    if (isSupported && mode.$modes) {
+        // TODO refactor mode delegates to make this simpler
+        try {
+            editorProxy.setupContext(editor);
+            if (/js|php/.test(editorProxy.getSyntax()))
+                isSupported = false;
+        } catch(e) {}
+    }
+    return isSupported;
+}
+
 var onChangeMode = function(e, target) {
     var editor = target;
     if (!editor)
@@ -408,16 +426,20 @@ var onChangeMode = function(e, target) {
     var enabled = exports.isSupportedMode(editor.session.$mode);
     if (e.enableEmmet === false)
         enabled = false;
-    if (enabled) {
-        if (typeof emmetPath == "string") {
-            require("ace/config").loadModule(emmetPath, function() {
-                emmetPath = null;
-            });
-        }
-    }
+    if (enabled)
+        load();
     exports.updateCommands(editor, enabled);
 };
 
+var load = function(cb) {
+    if (typeof emmetPath == "string") {
+        require("ace/config").loadModule(emmetPath, function() {
+            emmetPath = null;
+            cb && cb();
+        });
+    }
+};
+
 exports.AceEmmetEditor = AceEmmetEditor;
 require("ace/config").defineOptions(Editor.prototype, "editor", {
     enableEmmet: {
diff --git a/node_modules/architect-build/npm_build.js b/node_modules/architect-build/npm_build.js
index 1bc1a643..e80f33c6 100644
--- a/node_modules/architect-build/npm_build.js
+++ b/node_modules/architect-build/npm_build.js
@@ -124,6 +124,9 @@ function addModule(id, parent) {
             children.push(name.slice(1, -1));
         }
     }
+    if (/\.json$/.test(filename))
+        children = [];
+    
     var module = {
         relPath: relPath(filename),
         id: filename,
diff --git a/node_modules/c9/urls.js b/node_modules/c9/urls.js
index 0be2eb00..19f9e35c 100644
--- a/node_modules/c9/urls.js
+++ b/node_modules/c9/urls.js
@@ -74,6 +74,8 @@ plugin.replaceDomains = function(settings, domains) {
             continue;
         if (settings[s].baseUrl)
             settings[s].baseUrl = replaceDomain(settings[s].baseUrl, primaryDomain);
+        if (settings[s].localBaseUrl)
+            settings[s].localBaseUrl = replaceDomain(settings[s].localBaseUrl, primaryDomain);
         if (settings[s].primaryBaseUrl)
             settings[s].primaryBaseUrl = replaceDomain(settings[s].primaryBaseUrl, primaryDomain);
         if (settings[s].baseUrls) {
diff --git a/node_modules/vfs-local/package.json b/node_modules/vfs-local/package.json
index 0cb24528..825b3141 100644
--- a/node_modules/vfs-local/package.json
+++ b/node_modules/vfs-local/package.json
@@ -15,8 +15,8 @@
     "dependencies": {
         "simple-mime": "~0.0.7"
     },
-    "optionalDependencies": {
-        "pty.js": "0.2.3"
+    "externalDependencies": {
+        "pty.js": "0.2.8"
     },
     "devDependencies": {
         "chai": "~1.2.0",
diff --git a/package.json b/package.json
index 9af26fe6..99dea221 100644
--- a/package.json
+++ b/package.json
@@ -74,7 +74,7 @@
         "c9.ide.find.replace": "#44772dd796",
         "c9.ide.run.debug": "#c7f1ed5d5d",
         "c9.automate": "#47e2c429c9",
-        "c9.ide.ace.emmet": "#0ab4c6cd68",
+        "c9.ide.ace.emmet": "#6dc4585e02",
         "c9.ide.ace.gotoline": "#a8ff07c8f4",
         "c9.ide.ace.keymaps": "#43445d6306",
         "c9.ide.ace.repl": "#f3a62c1f2a",
@@ -83,7 +83,7 @@
         "c9.ide.ace.stripws": "#cf0f42ac59",
         "c9.ide.behaviors": "#98461756d9",
         "c9.ide.closeconfirmation": "#a28bfd8272",
-        "c9.ide.configuration": "#adf50fdaa2",
+        "c9.ide.configuration": "#a17478a2e5",
         "c9.ide.dialog.wizard": "#7667ec79a8",
         "c9.ide.fontawesome": "#781602c5d8",
         "c9.ide.format": "#b0bb91a623",
diff --git a/plugins/c9.vfs.client/endpoint.js b/plugins/c9.vfs.client/endpoint.js
index c74227d8..b2c4524f 100644
--- a/plugins/c9.vfs.client/endpoint.js
+++ b/plugins/c9.vfs.client/endpoint.js
@@ -167,7 +167,7 @@ define(function(require, exports, module) {
                 return;
             }
             
-            var servers = shuffleServers(version, vfsServers);
+            servers = shuffleServers(version, vfsServers);
             
             // check for version
             if (vfsServers.length && !servers.length) {