fix(peerDependencies): support any version of angular >= RC5
fix(peerDependencies): support any version of angular >= RC5

SamindaK/angular-calendar,SamindaK/angular-calendar,mattlewis92/angular-calendar,juanfc/angular-calendar,mattlewis92/angular2-calendar,juanfc/angular-calendar,juanfc/angular-calendar,mattlewis92/angular-calendar,mattlewis92/angular2-calendar,mattlewis92/angular-calendar,juanfc/angular-calendar,mattlewis92/angular-calendar,SamindaK/angular-calendar,mattlewis92/angular2-calendar