Light-weight layout framework to simplify working with autolayout

Jonas Budelmann is the author of Masonry, a light-weight layout framework for AutoLayout:

Under the hood Auto Layout is a powerful and flexible way of organising and laying out your views. However creating constraints from code is verbose and not very descriptive.

Masonary has its own layout DSL which provides a chainable way of describing your NSLayoutConstraints which results in layout code which is more concise and readable.