[Plots] #638 added onchange handling in order to synchronize forms with domain object model.

Fixed failing test

Added tests

jslint errors

Minor refactoring of layout bundle

revert layout/bundle.json

platform/commonUI/browse/src/InspectorRegion.js

@@ -62,7 +62,7 @@ define(
                 }
             };
             this.addPart(metadataPart, 0);
-        }
+        };
 
         return InspectorRegion;
     }