Patch to really removed deleted views

Probably not the best solution, however, cells were not getting recycled, just piling up with an alpha of 0. Occasionally their alpha would get changed to 1 and they would appear. Feel free to take this change, or find a better solution.

FYI,  I did find that PSTCollectionUpdateActionReload was resulting in a delete and then an insert which confused the state of the collectionView and the cell would be removed.