Revert "Added a UITabBarController to the app delegate. Both UI view controllers were added to the tab bar controller allowing the user to switch between the reminder and hypnosis views. Added a UI local notification so BNRReminderViewController so that when the user picks a date the app will fire a notification at that selected date/time."

This reverts commit 172c20d83c43235cfa9ba4b2bf1a545912e21741.