Added Core Location to CreateRoomView
Added animated arrow image.
Replaced circle arrow image with a dashed arrow animation.  When measuring the different walls, the canvas rotates to the wall you are measuring.
Commented out tiny distance label next to each completed measurement.
Added Navigation Controller and animated buttons and labels on CreateRoomView for a smoother transition.
Stops rangefinder and cleans up resources when back button is pressed on the Navigation Bar.
Added LevelView to display whether or not the iPad is level when measuring a room.
Cleaned up placement of views in the ViewController.
Added Home image to the CreateRoomView display for capturing the number of rooms that have been measured.
Added Room class representing a draggable room. Added Util class that provides static utility methods for converting measurement units to pixels.
Added FloorPlanDAO for storing the Room objects after we create them.
FloorPlanDAO now supports multiple floors
Fixed bugs in FloorPlanDAO and created test cases.
fixed bugs in Room
Merge branch 'Mark_Branch'