Megaglest unit moving error workaround

[Paulo César Pereira de Andrade]

  In case you have this issue, I just "rediscovered" a workaround. Add

EnableColorPicking=true

to $HOME/.megaglest/glestuser.ini

you probably will want to remove it later, once the problem is corrected
in mesa.

Initial fedora and upstream bug reports:
https://bugzilla.redhat.com/show_bug.cgi?id=889685
https://sourceforge.net/tracker/index.php?func=detail&aid=3598159&group_id=300350&atid=1266776

  The problem appears to also affect f17 users, not just rawhude, based
on http://forums.fedoraforum.org/showthread.php?t=286192

Thanks,
Paulo