Add location bar to allow specify custom repository location

package.json

@@ -109,7 +109,7 @@
         "c9.ide.run.build": "#0598fff697",
         "c9.ide.run.debug.xdebug": "#9956689819",
         "c9.ide.save": "#86f0f38160",
-        "c9.ide.scm": "#ca3c94b84f",
+        "c9.ide.scm": "#c7385f7f7c",
         "c9.ide.terminal.monitor": "#1a4092ede2",
         "c9.ide.test": "#a282ec1619",
         "c9.ide.test.mocha": "#fc053b23d2",