Merge pull request #20 from orta/master

Added documentation for NSArray & removed some redundant code
Change int to either NSUInteger (for indices) or NSInteger
Using integerValue instead of intValue
Update specs to follow.
Missed some of the specs.
Use unsigned where it's always unsigned.
Update readme.
more docs
Added [NSDictionary hasKey:]
Merge pull request #24 from neilco/hasKey

Added [NSDictionary hasKey:]
added hasKey documentation
changed hasKey implementation to a simpler lookup
added Makefile. removed pods
removed xctool updates from makefile
Added -camelCase on NSString
Tagging 0.7
ignored pods
added containsString: , by default is not case sensitive
updated readme
tagged 0.8
Add NSArray-detect
Merge pull request #26 from kattrali/nsarray-detect

Add NSArray-detect