Add vfs.log mock to tests

package.json

@@ -108,7 +108,7 @@
         "c9.ide.run": "#485f06bd22",
         "c9.ide.run.build": "#0598fff697",
         "c9.ide.run.debug.xdebug": "#9956689819",
-        "c9.ide.save": "#8219605f37",
+        "c9.ide.save": "#25a63f31e2",
         "c9.ide.scm": "#dc87315012",
         "c9.ide.terminal.monitor": "#1a4092ede2",
         "c9.ide.test": "#a282ec1619",

plugins/c9.fs/fs_test.js

@@ -21,7 +21,7 @@ require(["lib/architect/architect", "lib/chai/chai", "/vfs-root"],
         //Mock Plugins
         {
             consumes: ["Plugin"],
-            provides: ["auth.bootstrap", "info", "dialog.error"],
+            provides: ["auth.bootstrap", "info", "dialog.error", "vfs.log"],
             setup: expect.html.mocked
         },
         {

plugins/c9.vfs.standalone/www/test.js

@@ -94,6 +94,9 @@ require([
                 var x = new EventEmitter();
                 return x;
             })(),
+            "vfs.log": {
+                log: function(){} 
+            },
             anims: (function(){
                 var x = new EventEmitter();
                 x.animateSplitBoxNode = function(node, opt) {