Merge pull request #4 from Ben-Ho/master-bugfix-messagebox

Added icon for Ext.MessageBoxes because styling broken if not set
Reload grids on savesuccess

Is needed to ensure grid only show rows matching filter. For this reason
reloadRowOnSave is not needed anymore.
Add reloadGrid feature to editWindow

Needed to add listener to controller because view does not exist till
openEditWindow.
Merge pull request #5 from Ben-Ho/master-reloadgrid

Reload grids on savesuccess
Merge pull request #6 from Ben-Ho/master-forwardevents

Forward events for easier access
Listen to editWindow view instead of controller.

This way it's not needed for controller to implement observable