Fix storyboard segues on iOS < 6.0 (closes #121)
Added comment describing downsides of the current implementation
Selection segue is triggered only after the corresponding index path has been added to the _indexPathsForSelectedItems
fixed #292 enable the allowsSelection property
Merge pull request #300 from darcyliu/master

Fix issue #292
Merge branch 'master' of github.com:steipete/PSTCollectionView
Merge pull request #284 from advantis/master

Fix storyboard segues on iOS < 6.0
Fixes an issue if the grid delegate was set to the grid
formatting
Improve segue calling
Fixed problem with applied LayoutAttributes (fixes #225)
Merge branch 'master' of github.com:steipete/PSTCollectionView