Issue #171: Shifting Simperium to properties.
Adds SPLibraryID constant.
Merge remote-tracking branch 'origin/develop' into unit-tests

Conflicts:
	Simperium/SPWebSocketInterface.m
	Simperium/Simperium.m
Upgrading Integration tests to use Xcode 5 testing framework. Adding WebSockets mock objects and mock-mechanism. Adding Unit Tests.
Fixes deadlock in unit tests.
Adding Remote-Debug Unit Tests. Enhancing mock objecs.
Adding comments to Mock-Registration mechanism
SPChangeProcessor: improving exportPendingChanges method
RemoteDebugTests: Adds missing break
MockSimperium: Nukes ‘new’ keyword in static methods
Merge pull request #173 from Simperium/unit-tests

Implement Unit Testing Mechanism