Added Initial Support for OPENCV for Android

- After having ADT generate the Gradle files for standard OpenCV for Android Library,  I copied and pasted the contents of the library into an application module called opencv-android
Removed OpenCV Support
Removed OpenCV Support
Merge branch 'initialize-views' of https://github.com/mhotan/UbiShopper into intialize-views-mh

Conflicts:
	app/src/main/java/se/kth/csc/ubicomp/ubishopper/login/LoginActivity.java
	app/src/main/res/layout/fragment_login.xml
	app/src/main/res/layout/fragment_user_interest.xml
Refactored Camera Preview into Login Activity.
Implemented Login and User Interest

Login can detect but not recognize faces.  Login social does not work yet.

User Interest.  Views can be clicked on and highlighted as selected.  However the user interest