All autolayout helpers optionally return constraints
Commenting
Appledocs. Appledocs everywhere.
Add pinning w/h with mutliplier, update comment
Fix order of constraints, fix literal format
Monospace things in comments
Be very sure of ordering for fill container constraints
Monospace the NO
Make deprecation comment a warning
Merge pull request #92 from Raizlabs/feature/ndonald2/return-constraints

Return constraints from autolayout helpers
Update podspec
Merge pull request #93 from Raizlabs/release/2.1.0

Release 2.1.0