[MYGUIDE-20] Added MWLogging library, OCMock framework and UnitTests

How to include OCMock to your project (if merging fails):
1. Click on MyGuide project on the very top of directories structure
2. Select target: MyGuideTest
3. In *Build Phases* add libOCMock.a in *Link Binary With Libraries*
4. In *Build Settings* search *Header Search Path* and add there `$(SRCROOT)/Frameworks/OCMock/headers`
5. Once again search *Other linker flags* and add there `$(SRCROOT)/Frameworks/OCMock/libOCMock.a`
6. Build project successfully ;)
7. [Enjoy your mocking test framework](http://ocmock.org/)!