Use semantic colors

ListCell now uses default clear background color
ListController's collectionView uses .systemBackground for backgroundColor. This means by default the screen will be white/black in light/dark modes.

Fix tvOS buttons

Use primaryActionTriggered for all buttons

Allow for tvOS

Allow for tvOS

ListController initializer fix

ListController initializer fix

Minor updates

Allow ListController to be initialized with custom layout
Include CGSize edge initializer
Detach FormController from NotificationCenter on deinit.

Fix

1.0.12

fix for ios9+

Fix for iOS9+

1.0.11

fix for ios9+

Expose useful anchor function

expose anchor method as open

use default 0 value for constants

SPM Support

Merge pull request #16 from michaelversus/patch-1

Add constraint Method with enum

Update cell height estimation

1.0.8

update readme