Fixed crash on iOS prior 7.
Merge pull request #60 from Eugene-Gubin/master

Fixed crash on iOS prior 7.
Better synchronizable checking. Closes #62. Closes #61. Closes #56.
Setup Mac tests
Clean up
Make any the default. Closes #55
Clean up for Mac
Fight with Mac tests
Merge commit '7f52639da0e0afd149d170e826ec8192f6fee7de'

Conflicts:
	SSKeychain/SSKeychainQuery.m