Set Unit Test as "Testing Target" for main app and set Target as shared to propagate to forks.
Merge pull request #406 from mralexgray/experiemental-unit-test-target

Set Unit Test as "Testing Target" for main app and set Target as shared ...
Implemented basic merging of method groups from categories and extensions.
Implemented unit tests for merging categories and extensions to class with existing groups.
Upgraded to latest cocoapods.