Revert changes from pull #87.  Angular 1.3.0 not officially released.
Revert changes from pull #87.  Angular 1.3.0 not officially released.

areverberi/angular-google-chart,nbering/angular-google-chart,angular-google-chart/angular-google-chart,nbering/angular-google-chart,areverberi/angular-google-chart,angular-google-chart/angular-google-chart