Memory Leak in sample project

[Naloiko Evgeni]

Just click "Map"->Back -> "Hand Picked" -> Back multiple times. The Memory consumption grows until the app would crash.
The memory leak disappears - when we comment out the line:
vc.pullUpControl = self.pullUpControl

Or each time viewController should be dismissed - we need to manually nulify:
self.pullUpControl.pullUpVC = nil
Otherwise there is a circular reference - which doesn't let the app to cleanup its memory.