- Adds initial support for Social API with Scoreloop impl for BlackBerry.
- Cleans up some PREPROCESSOR macros for consistency.
- Fixes a few warnings.
Merge branch 'next' of https://github.com/blackberry/GamePlay into next

Conflicts:
	gameplay/src/PhysicsController.cpp
Merge branch 'next' of https://github.com/blackberry/GamePlay into next
Merge branch 'next' of https://github.com/blackberry/GamePlay into next
Updated to add the initial social abstraction. dducharme will be adding Google Play Game Services and GameCenter also later.
Update README.md
Merge branch 'next' of https://github.com/blackberry/GamePlay into next
Merge pull request #1157 from seanpaultaylor/next

Next