fix collab server mocha test

package.json

@@ -60,7 +60,7 @@
         "c9.ide.language.javascript.tern": "#7aab8b0b6a",
         "c9.ide.language.javascript.infer": "#393d215e96",
         "c9.ide.language.jsonalyzer": "#7261f47b26",
-        "c9.ide.collab": "#c64429becd",
+        "c9.ide.collab": "#7b09419b5c",
         "c9.ide.local": "#cf624506cc",
         "c9.ide.find": "#ef82bc4f0d",
         "c9.ide.find.infiles": "#1b83cf12f1",