Install codeintel during tests

package.json

@@ -56,7 +56,7 @@
         "c9"
     ],
     "c9plugins": {
-        "c9.ide.language": "#3f75b81afb",
+        "c9.ide.language": "#8bb31ec559",
         "c9.ide.language.css": "#be07d72209",
         "c9.ide.language.generic": "#92210f5a48",
         "c9.ide.language.html": "#22fdc74869",
@@ -67,7 +67,7 @@
         "c9.ide.language.javascript.tern": "#8423d558f6",
         "c9.ide.language.javascript.infer": "#325ac6880e",
         "c9.ide.language.jsonalyzer": "#f15161bd57",
-        "c9.ide.language.codeintel": "#0888f00292",
+        "c9.ide.language.codeintel": "#17a1f2f1cf",
         "c9.ide.collab": "#a1a13c5943",
         "c9.ide.local": "#ded0db8949",
         "c9.ide.find": "#e33fbaed2f",