Abstracted notification queue handling.
Cleaned up comments.
Added internal helper macros header.
Fixed some typos in queue.
Added IIShortNotificationConcurrentQueue.
Removed presenterView.
Added IIShortNotificationViewInstance.
Added burst button to view controller demo.
Reworked how notifications are presented so multiple simulatenous notifications are possible.
Reimplemented autodismissal.
Add some delay to burst notification demo.
renamed IIShortNotificationPresentater+Internal.h to IIShortNotificationPresentation+Internal.h
Added layout infrastructure, but doesn't do anything yet.
Removed unused `_allowUserDismissal`.
Implemente layout interactions, and IIShortNotificationTopLayout.
Restructured project.
Moved "topConstraint" to toplayout specific category.
Added (empty) IIShortNotificationSideLayout.
Methods in IIShortNotificationLayout are now required.
Cancel previous autodismissals.