Merge pull request #78 from jmoody/compiler-warning-cleanup-and-bar-button-additions

 UIBarButtonItem removeTitleShadow now also removes the shadow in control state highlighted
cosmetic change
adds UIToolbar category to FlatKit.h
Merge branch 'master' of github.com:Grouper/FlatUIKit into add-toolbar-category-to-FlatKit-dot-h
Merge branch 'riseup-branch' into iOS7-style-back-button-for-iOS5-and-6-code-review
trying to adjust the title offset to match iOS 7
some more experimentation to see if we can solve the text clipping problem
fixes text clipping problem by adjusting edge insets on resizable background image