Fix jumping to file without .js

package.json

@@ -64,7 +64,7 @@
         "c9.ide.language.javascript": "#8479d0a9c1",
         "c9.ide.language.javascript.immediate": "#0535804ada",
         "c9.ide.language.javascript.eslint": "#2db744b1a3",
-        "c9.ide.language.javascript.tern": "#7aab8b0b6a",
+        "c9.ide.language.javascript.tern": "#2b0bb024da",
         "c9.ide.language.javascript.infer": "#cfec494a3c",
         "c9.ide.language.jsonalyzer": "#c253f093a0",
         "c9.ide.collab": "#f0e96dd2cf",