Carthage Support

Thanks @SandyChapman

Improve layoutAttributesForElementsInRect implementation

See mokagio#5 (comment)

1.0.0 release

The library has been out for almost a year and proved to be quite stable. No point in keeping it 0.x

Added sectionInset support, thanks to @bbz9

Layout also checks delegate method when setting minimum interitem spa…

…cing

UICollectionViewLeftAlignedLayout first development release