Gruntfile:
- version appended to non minified version same as develop
Map.Control:
- refresh and getGMap are now more functional oriented
- the directive looks for a controller to have control= defined. The
  object is extended with refresh and getGMap which are direct callback
hooks to the directive itself.

Refresh:
Accepts optional coordinates to  panTo or Center on a new
postion after refresh / "resize" is triggered

issue #230

See example.html for map.control.refresh and map.control.getGMap