Merge pull request #14 from rhodgkins/master

iOS 6.1 SDK fix
instancetype, removed unneeded asserts
More robotty
Remove inaccurate XCode copyright claim from UIView+AutoLayout.m 

See https://github.com/jrturton/UIView-Autolayout/issues/15 for details
Remove inaccurate XCode copyright claim from UIView+AutoLayout.h

See https://github.com/jrturton/UIView-Autolayout/issues/15 for details
Merge pull request #16 from cschneid/master

Remove contradictory license information from headers of Files.
Added space on axis method using intrinsic size
Podspec to 0.0.9
added -(NSLayoutConstraint *)pinAttribute:(NSLayoutAttribute)attribute toSameAttributeOfItem:(id)peerItem
Merge pull request #17 from kgn/master

added -(NSLayoutConstraint *)pinAttribute:(NSLayoutAttribute)attribute toSameAttributeOfItem:(id)peerItem
Added screenshot
Merge branch 'master' of https://github.com/jrturton/UIView-Autolayout
Update README.md
spaceViews methods now return an NSArray of their constraints
Merge pull request #20 from bartvandendriessche/improvement/space_returns_constraints

spaceViews methods now return an NSArray of their constraints
Update README.md
Update README.md