Clarify docs on no-ifa
Use boundingRectWithSize for iOS 7 and above, sizeWithFont otherwise
Merge pull request #12 from mixpanel/fix-boundingrect-ios6

Use boundingRectWithSize for iOS 7 and above, sizeWithFont otherwise
Added unit test for surveys bug
Merge branch 'fix-boundingrect-ios6'
Bump version to 2.2.1
Merge remote-tracking branch 'upstream/master'