Added in calendar management model
- Can now add a calendar from the local database into Apple phone calendar
- Added entries into events and schedules models

Squashed commit of the following:

commit b725c3208d4e88b36d088b91b098e2d9d06c5808
Author: Collin Yen <collinyen7@gmail.com>
Date:   Mon May 5 13:31:43 2014 -0700

    Cleaned up some stuff in viewcontroller

commit 3808ef4c5c1b9742613914e10683bff29d91b768
Author: Collin Yen <collinyen7@gmail.com>
Date:   Mon May 5 13:27:29 2014 -0700

    Fixed bug in deleting calendar events

commit bcf0943afa7c8135099ef0b187508b7e5b084d5a
Author: Collin Yen <collinyen7@gmail.com>
Date:   Sat May 3 23:54:43 2014 -0700

    Intermediate commit