Movepages.py: Fix wrong parameter name and clean-up

leaveRedirect param is not valid param  for page.move() in core
added -notalkpage switch, removal of unused variables.

Change-Id: I8b49a1f74a43dae1f543fd414d5a5f9b5e1d357c
Merge "Movepages.py: Fix wrong parameter name and clean-up"