Allow/Dissalow folding multiple sections, added NGSectionManagementDelegate for more control
Cleanup the folding/unfolding code that uses a lot of delegate calls now
Added delegates to hiding/showing methods
Simplify CATransaction block calls
Merge commit '8e807e7e71231ab76ea305024564da28016e8513'
Two comments about section header/footer height
Helper method for calculating empty table content height (may be used to vertically centre the tableView content)