Big changes are change in Recipe data model, BleDeviceInfo data model.Small bug fixes here and there.
Added Progress bars to BleActivity while loading saved devices and scanning for new devices.
Merge branch 'richak' of https://github.com/richk/ProjectBeacon into richak

Conflicts:
	src/com/codepath/beacon/activity/CreateRecipeActivity.java
	src/com/codepath/beacon/activity/RecipeDetailActivity.java
	src/com/codepath/beacon/scan/BleActivity.java