Merge pull request #5 from liamnichols/master

Updated return types on common methods
Merge pull request #6 from liamnichols/master

Removed copy from NSLayoutConstraint return types
Update README.md
Added pinEdges:toSameEdgesOfView: to save calling pinEdge:toEdge:ofView: mutliple times when using the same edge. Reuses the enum for edges.
Changed comments to match others (second method with inset parameter)
Added new methods to readme
Incremented podspec version to 0.0.5
Merge pull request #8 from rhodgkins/master

Added pinEdges:toSameEdgesOfView:
Merging demo project
Adding syntax highlighting to the readme
Merge pull request #10 from kgn/master

Adding syntax highlighting to the readme
Returned constraints array from pinPointAtX: method
Update README.md
Add extra methods to create constraints based on CGSize
Merge pull request #11 from bartvandendriessche/feature/extra_cgsize_methods

Add extra methods to create constraints based on CGSize
Added methods to constrain just the width or height
Merge pull request #13 from kgn/master

Added methods to constrain just the width or height
Added support for layout guides in iOS7
Update README.md
Update spec for 0.0.7