Not converting test class to identifier as it changes + to _
Bump to 2.2.4
Merge pull request #473 from MaxGabriel/master

Bump Podspec to 2.2.4
Merge pull request #453 from sgleadow/make-spec-file-template-work-with-category-names

Make Kiwi spec file template work with category names
Replace the exception with a failure
Merge pull request #480 from modocache/fix-479-64-bit-cast-msgsend

KWSpec: Cast objc_msgSend for 64-bit device.
Add the test
Merge pull request #481 from akashivskyy/unresolved-verifier

Do not throw exceptions when making expectations on a nil subject
Convert KWMessagePattern to ARC.
Remove NonARC folder.

- Move `KWMessagePattern` from `NonARC/` to `Classes/Core/`.
- Remove NonARC directory.
Prevent premature release of invocation arguments.

`-[NSInvocation getArgument:atIndex:]` is only safe
when used with object ownership of `__unsafe_unretained`.
For details see: http://stackoverflow.com/q/8672675/679254

- Add functional tests which demonstrate premature deallocation
- Convert object ownership to `__unsafe_unretained`
Remove ARC, NonARC subspecs.

Entire project now uses ARC.