Merge pull request #2770 from showkit/master

ShowKit 0.5.7
HawkClient_iOS
remove HawkClient_iOS (errors)
HawkClient_iOS
Adding MTGratuityPicker 0.0.1.
Merge pull request #2772 from mteece/master

MTGratuityPicker 0.0.1
Added PICircularProgressView podspec (0.1.1)
Added MKUnits 1.1.0
Updated Git tag
Merge pull request #2774 from michalkonturek/master

Added MKUnits 1.1.0
SAMTextField 0.1.0
Add SAMWebView 0.1.0
Add SAMHUDView 0.1.0
Add SAMWebView 0.1.1
Added MOOSelectableList podspec (1.0.1)
[Update] MRBrew (1.1.1)
[Fix] KissXML (5.0)
[Fix] KissXML (5.0)
Merge branch 'master' of github.com:CocoaPods/Specs

* 'master' of github.com:CocoaPods/Specs:
  [Fix] KissXML (5.0)
resolve HawkClient problem.