diff --git a/.gitignore b/.gitignore
index 0b108e06..ac005ae1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,6 +25,7 @@ plugins/c9.fs/mock/
 
 # ignore node_modules
 node_modules/*
+plugins/c9.batch/analytics/node_modules/
 # except git subtrees 
 !node_modules/ace*
 !node_modules/architect*
diff --git a/node_modules/c9/json-with-re.js b/node_modules/c9/json-with-re.js
new file mode 100644
index 00000000..e8f475db
--- /dev/null
+++ b/node_modules/c9/json-with-re.js
@@ -0,0 +1,28 @@
+/**
+ * JSON (de-)serializer with support for encosing regular expressions
+ */
+"use strict";
+
+exports.replacer = function(key, value) {
+    if (value instanceof RegExp)
+        return ("__REGEXP " + value.toString());
+    else
+        return value;
+};
+
+exports.reviver = function(key, value) {
+    if ((value + "").indexOf("__REGEXP ") == 0) {
+        var m = value.match(/__REGEXP \/(.*)\/(.*)?/);
+        return new RegExp(m[1], m[2]);
+    }
+    else
+        return value;
+};
+
+exports.stringify = function(value, space) {
+    return JSON.stringify(value, exports.replacer, space);
+};
+
+exports.parse = function(rext) {
+    return JSON.parse(rext, exports.reviver);
+};
\ No newline at end of file
diff --git a/node_modules/c9/json-with-re_test.js b/node_modules/c9/json-with-re_test.js
new file mode 100644
index 00000000..5ccb3ecb
--- /dev/null
+++ b/node_modules/c9/json-with-re_test.js
@@ -0,0 +1,27 @@
+/*global describe it before after beforeEach afterEach define*/
+"use strict";
+"use server";
+"use mocha";
+
+require("c9/inline-mocha")(module);
+
+var assert = require("assert-diff");
+var reJSON = require("./json-with-re");
+
+describe(__filename, function(){
+    it("should encode regular expressions", function() {
+        assert.deepEqual(reJSON.stringify({ foo: /foo/ }), '{"foo":"__REGEXP /foo/"}');
+        assert.deepEqual(reJSON.stringify({ foo: /foo\//gi }), "{\"foo\":\"__REGEXP /foo\\\\//gi\"}");
+    });
+    it("should decode regular expressions", function() {
+        assert.deepEqual(reJSON.parse('{"foo":"__REGEXP /foo/"}'), { foo: /foo/ });
+        assert.deepEqual(reJSON.parse("{\"foo\":\"__REGEXP /foo\\\\//gi\"}"), { foo: /foo\//gi });
+    });
+    it("should deal with null values", function() {
+         var o = {
+             foo: null,
+             bar: /dd/
+         };
+         assert.deepEqual(reJSON.parse(reJSON.stringify(o)), o);
+    });
+});
diff --git a/node_modules/c9/urls.js b/node_modules/c9/urls.js
index c48a3cff..0284030c 100644
--- a/node_modules/c9/urls.js
+++ b/node_modules/c9/urls.js
@@ -91,12 +91,12 @@ function getBaseUrl(req, sourceBaseUrlPattern, targetBaseUrlPattern) {
         targetHost = "c9.io";
     }
 
-    if (targetHost.match(/^(ide|vfs)./) && !targetBaseUrlPattern)
+    if (/^(ide|vfs)./.test(targetHost) && !targetBaseUrlPattern)
         console.error(new Error("Warning: no targetBaseUrlPattern specified, will stay at " + targetHost), {
             sourceBaseUrlPattern: sourceBaseUrlPattern
         });
 
-    if (targetHost.match(/^(ide|vfs)./))
+    if (/^(ide|vfs)./.test(targetHost))
         console.trace("Warning: possibly incorrect baseUrl constructed, with 'ide.' in the hostname: " + targetHost);
 
     return replaceDomain(targetBaseUrlPattern || sourceBaseUrlPattern, targetHost)
diff --git a/node_modules/connect-architect/connect.redirect/redirect.js b/node_modules/connect-architect/connect.redirect/redirect.js
index 010e98e8..43b634f6 100644
--- a/node_modules/connect-architect/connect.redirect/redirect.js
+++ b/node_modules/connect-architect/connect.redirect/redirect.js
@@ -1,11 +1,24 @@
 "use strict";
 
+var url = require("url");
+
 module.exports = function(options, imports, register) {
     
+    var trustedDomainsRe = options.trustedDomainsRe || /.*/;
+    
     imports.connect.addResponseMethod("redirect", function(location) {
         this.writeHead(302, {Location: location});
         this.end("");
     });
+    imports.connect.addResponseMethod("secureRedirect", function(location) {
+        var parsedLocation = url.parse(location);
+        
+        if (!trustedDomainsRe.test(parsedLocation.host))
+            location = parsedLocation.path;
+            
+        this.writeHead(302, {Location: location});
+        this.end("");
+    });
     imports.connect.addResponseMethod("returnTo", function(req, defaultReturn) {
         var url = defaultReturn || "/";
         if (req.session && req.session.returnTo) {
diff --git a/package.json b/package.json
index 70534d31..3ded882c 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
     "name": "c9",
     "description": "New Cloud9 Client",
-    "version": "3.1.126",
+    "version": "3.1.176",
     "author": "Ajax.org B.V. <info@ajax.org>",
     "private": true,
     "main": "bin/c9",
@@ -71,7 +71,7 @@
         "c9.ide.find": "#35379124ca",
         "c9.ide.find.infiles": "#c132ad243c",
         "c9.ide.find.replace": "#44772dd796",
-        "c9.ide.run.debug": "#a46abda8e9",
+        "c9.ide.run.debug": "#3b76105b4e",
         "c9.automate": "#47e2c429c9",
         "c9.ide.ace.emmet": "#6dc4585e02",
         "c9.ide.ace.gotoline": "#a8ff07c8f4",
diff --git a/plugins/c9.error/raygun.connect.js b/plugins/c9.error/raygun.connect.js
index a52bac9c..c10315f2 100644
--- a/plugins/c9.error/raygun.connect.js
+++ b/plugins/c9.error/raygun.connect.js
@@ -61,11 +61,8 @@ function plugin(options, imports, register) {
 
         var domain = socket._httpMessage && socket._httpMessage.domain;
         var req = domain && domain.members[0];
-        if (req && req.url) {
-            metrics.increment("request.timeout");
+        if (req && req.url)
             sendRequestWarning(new Error("Request timed out: " + req.url), req);
-        }
-        
     });
     
     function sendRequestError(err, req) {
diff --git a/plugins/c9.ide.editors/editors.js b/plugins/c9.ide.editors/editors.js
index 510e3273..38c50e54 100644
--- a/plugins/c9.ide.editors/editors.js
+++ b/plugins/c9.ide.editors/editors.js
@@ -183,6 +183,8 @@ define(function(require, module, exports) {
         });
         plugin.on("unload", function(){
             loaded = false;
+            defaultEditor = null;
+            group = null;
         });
         
         /***** Register and define API *****/
diff --git a/plugins/c9.ide.terminal/terminal.js b/plugins/c9.ide.terminal/terminal.js
index 832af404..29cbc884 100644
--- a/plugins/c9.ide.terminal/terminal.js
+++ b/plugins/c9.ide.terminal/terminal.js
@@ -356,6 +356,13 @@ define(function(require, exports, module) {
                 }
             });
         });
+        handle.on("unload", function(){
+            mnuTerminal = null;
+            lastEditor = null;
+            lastTerminal = null;
+            shownDotsHelp = null;
+            installPrompted = null;
+        });
         
         handle.draw = function(){
             ui.insertMarkup(null, markupMenu, handle);
diff --git a/plugins/c9.metrics/mock_metrics.js b/plugins/c9.metrics/mock_metrics.js
index 56a13241..7eb884f4 100644
--- a/plugins/c9.metrics/mock_metrics.js
+++ b/plugins/c9.metrics/mock_metrics.js
@@ -13,7 +13,8 @@ function plugin(options, imports, register) {
      register(null, {
         "metrics": {
             log: function() {},
-            increment: function() {}
+            increment: function() {},
+            timing: function() {}
         }
     });
 }
\ No newline at end of file
diff --git a/plugins/c9.vfs.server/cache.js b/plugins/c9.vfs.server/cache.js
index bc174ae4..69d21f9c 100644
--- a/plugins/c9.vfs.server/cache.js
+++ b/plugins/c9.vfs.server/cache.js
@@ -1,14 +1,18 @@
 define(function(require, exports, module) {
     "use strict";
     
-    main.consumes = ["Plugin", "vfs.connect"];
+    main.consumes = [
+        "Plugin",
+        "vfs.connect",
+        "metrics"
+    ];
     main.provides = ["vfs.cache"];
     return main;
 
-
     function main(options, imports, register) {
         var Plugin = imports.Plugin;
         var connectVfs = imports["vfs.connect"].connect;
+        var metrics = imports.metrics;
 
         var async = require("async");
         var uid = require("c9/uid");
@@ -54,10 +58,12 @@ define(function(require, exports, module) {
                     if (err) return done(err);
                     
                     entry.connectTime = Date.now() - entry.startTime;
+                    metrics.timing("vfs.connect.time", entry.connectTime);
                     
                     entry.emit("loaded");
                     
                     cache[vfsid] = entry;
+                    entry.keepalive();
 
                     vfs.on("destroy", function() {
                         remove(vfsid);
@@ -126,7 +132,6 @@ define(function(require, exports, module) {
             };
             
             entry.keepalive = function() {
-                clearTimeout(timer);
                 startTimer();
             };
             
@@ -139,7 +144,6 @@ define(function(require, exports, module) {
                 }, maxAge);
             }
             
-            startTimer();
             return entry;
         }
 
diff --git a/plugins/c9.vfs.server/vfs.server.js b/plugins/c9.vfs.server/vfs.server.js
index f3aa3954..5a117cf3 100644
--- a/plugins/c9.vfs.server/vfs.server.js
+++ b/plugins/c9.vfs.server/vfs.server.js
@@ -36,7 +36,6 @@ function plugin(options, imports, register) {
     var connect = imports.connect;
     var render = imports["connect.render"];
     var analytics = imports["analytics"];
-    var async = require("async");
     
     var Types = require("frontdoor").Types;
     var error = require("http-error");