added support for logic unit testing as an independent target using OCUnit and OCMock
Merge branch 'master' of https://github.com/dz1111/Commons-iOS
moving testing headers and library to Commons-iOS-Logic-Testing
removing duplicate testing items from the project
setup support for application unit testing along with a shared scheme; tests are enabled in Commons-iOS target
moved library files; updated search path
remove extra sentestingkit reference
Merge remote-tracking branch 'dz1111/UnitTestingSupport' into work

Conflicts:
	Commons-iOS.xcodeproj/project.pbxproj
throw in a quick unit test of [CommonsApp singleton] :)