Added a button over each face
Changed IplImageHelper to ImageHelper
Added an overlay picker dialog

Overlay picker has very small items, we should make that bigger
Also, we need a way to add overlays without hardcoding them
Made a Toast pop up when an overlay is clicked in the list
Made buttons work for images >700x700
Fix removed overlaypicker
Start orientation
Added overlay selection

Issue: the bitmap gets free'd  too early.
Fixed premature recycling by saving to temp files
Made the photo cache in FaceDetector and GlassesOverlaySpec
Made loading/saving BitmapToFile functions in ImageHelper.java
Added deleting temporary files when starting the app
Rotating image after save,
Removed unnecessary code and set to loss-less compression
Merge branch 'refs/heads/photoorientation' into facebuttons
Refactor and fix bugs.