Enable additional plugins by default

package.json

@@ -63,7 +63,7 @@
         "c9.ide.language.javascript": "#2b77bdb96a",
         "c9.ide.language.javascript.immediate": "#0535804ada",
         "c9.ide.language.javascript.eslint": "#3ec4557969",
-        "c9.ide.language.javascript.tern": "#f6876563ea",
+        "c9.ide.language.javascript.tern": "#abc7a61836",
         "c9.ide.language.javascript.infer": "#b15bdb1744",
         "c9.ide.language.jsonalyzer": "#45453961d9",
         "c9.ide.collab": "#30efed939e",