Removed pre-6.0.2 compatibility layer.
QuestTracker: Hide the "Objectives" label text when hiding the collapse button.
Move a comment.
Force the MoveButtons, Position and ShowHide modules into a disabled state if MoveAnything is installed.
Revert "Force the MoveButtons, Position and ShowHide modules into a disabled state if MoveAnything is installed."

This reverts commit 08f01cee3ea86cf2e16c65ac36ba072dc66c8a3a.
Leave MoveAnything as an optional dependency for now.