Fix crash when passing blocks to expect()
Merge pull request #23 from chrisdevereux/master

Fixes crash when passing a block to expect()
Merge pull request #19 from TrahDivad/master

Fix warnings from Xcode 4.5 DP1
eliminated xcode format string warnings
Add `raiseWithReason` matcher for checking that an exception is raised and its reason matches a given value
version 0.2.1
Merge remote-tracking branch 'petejkim/master'