solves #21 implemented support for scaletype fitCenter based on nomatterhoe's proposed code
removed signing and upload for compiled lib
fixes #27
Merge branch 'mediavrog'

Conflicts:
	cropper/res/values/attrs.xml
	cropper/src/com/edmodo/cropper/CropImageView.java
	cropper/src/com/edmodo/cropper/cropwindow/CropOverlayView.java