Note several fixes by Nikolaj Schumacher in release notes
Switch back to optimized code for Release config
Increased deployment targets to Mac OS X 10.6, iOS 5.0.
Added support for XCTestCase
createOCUnitException cleanup
Fixed MacExample so it finds OCHamcrest.
Deprecate "empty" which clashes with C++ string method. It has been renamed to "isEmpty".
Add XCTest to compatibility list!
Bump version to 2.1.0