Revert "Attempt to make "tap status bar to scroll" work. It does, but in my tests with a NavigationController only when first pushing then popping. The basic problem is that there can only be one tableView having "scrollsToTop" for this to be called by iOS. Hope @evadne can have a look."

This reverts commit 3db9dd5a82a4e96e04b383502d604cd89b13f6d3.
Allow to specify another default for the contentOffsetIncrement than 0.5 — Might be a better name than "contentOffsetIncrement" (I don't really care about the name).