addCompactConstraints:metrics:views: now returns an NSArray that contains all the contraints added.

This is useful when you need to keep a track of the contraints for animation purposes (removing existing contraints and adding new ones).
addCompactConstraints:metrics:views: now returns an NSArray that contains all the contraints added.

This is useful when you need to keep a track of the contraints for animation purposes (removing existing contraints and adding new ones).
Merge pull request #3 from flainez/master

Modify addCompactConstraints: to return an NSArray with the constraints created.