wait until collab is installed before trying to connect

package.json

@@ -60,7 +60,7 @@
         "c9.ide.language.javascript.tern": "#7aab8b0b6a",
         "c9.ide.language.javascript.infer": "#393d215e96",
         "c9.ide.language.jsonalyzer": "#21b64e5820",
-        "c9.ide.collab": "#ae0ee72477",
+        "c9.ide.collab": "#504750d8f0",
         "c9.ide.local": "#cf624506cc",
         "c9.ide.find": "#49dddb2aed",
         "c9.ide.find.infiles": "#72582de3cd",