Extended paging nav

Another one for my role at Cloud Sherpas. This one takes the standard iOS paging metaphor and extends it to let users know where they are, where they are going, and where they have come from. Tapping and dragging along the dots moves the blue label to show what is further down the line. This gesture is able to be cancelled by moving out of the nav area, while a release on the new location takes the user to that page.