forced portrait mode, added lazy instantiation for mapfragment
Changed API level to reflect MAP and tab additons
Removed list, themed buttons
Changed 'clear pins' button text
Refactored code a little, removed tab bar, removed reference to list
added arrayadapter ivar, added a call to updatePins() in onResume() because when it's called in OnCreate() the map hasn't been created yet
added adapter updates(not completely clean and uncoupled, but works well enough)
Cleaned interface and added popup
Added missing imports
Added in list back