Programmatically centered the levels screen in Chainsaw
Merge branch 'MikeSalyh-TP-data-games/master'
Chainsaw adjust margins of Levels and About screens, change highlight color of tape measure and logs in Levels.
Chainsaw: edited tape measure png. Removed empty pixels from thick & mixed logs that were causing issues with strokes. Tentative new stroking of roll-over effects (issue #209)
Made practice checkbox reset to its last state when 'cancel' is pressed. (fixes #210)

This also fixes a bug where the timer would count down when the game was
in practice, and the user unchecked practice and hit cancel. The level
was not changed, but the practice variable was, so it affected the timer
which used that variable.

Also added practice to save/restore state methods to make sure games
saved in practice mode are restored in practice mode.
Created a GlowFilter flex element to replace duplicated actionscript code.
Tape measure snaps back to the original position when dragged off screen and released. Fixes #206
Merge branch 'seg-srri-umass-tp-data-games/master'

Conflicts:
	Flash/ChainSaw/src/chainsaw/ChainSaw.mxml
Merge branch 'seg-srri-umass-tp-data-games/master'