Updating target api level to 18
Removing bin and gen folders from repo
Adding .gitignore
Added GestureListener for Single Tap and Long Press
Zoom of image is restored after rotation. Fixed bug in onMeasure when using view with wrap_content.

-After rotating, onMeasure now also resizes the image to its previous
size and translation.
-onMeasure now correctly get view size and mode to correctly handle
match_parent, wrap_content, etc.
-Refactoring.
-Comments.
Refactored onTouchListener into its own class. Refactored int mode into enum State.
Implemented Fling
Updated README
Implemented double tap zoom
Image now executes runnable to return to min/max scale after it is under/over zoomed.
Correctly center the image on the point that was tapped throughout the DoubleTapZoom animation.
Update max zoom comments for public api
Update README with usage and API
Add setMinZoom to public API
Add getDrawablePointFromTouchPoint to public API
Replaced old assets with new high quality assets.
Added third constructor which includes defStyle
Merge branch 'dev'