Adding support for the animator proxy on OS X
Style fixes
Merge pull request #41 from pfandrade/upstream

Adding support for the animator proxy on OS X
setter methods for NSLayoutConstraint constant proxies like offset, centerOffset, insets, sizeOffset.
v0.3.2
Update CHANGELOG.md
fix mac build
Converted <MASConstraint> protocol to abstract class (to support proper code completion in Xcode)
Merge pull request #42 from nickynick/class-constraints

Code completion in Xcode
v0.4.0
use setter for animator constant
Update .travis.yml
Update README.md
Update README.md
Reduce warning when "foundation assertions" disabled
Merge pull request #46 from sibljon/fix-warning-when-asserts-disabled

Reduce warning when "foundation assertions" disabled
update examples to call [super updateConstraints] at end of implementation
Update README.md
constraint grouping prototype
Explicitly #import <Foundation/Foundation.h> instead of assuming it has already been imported.