Merge pull request #111 from benoit-pierre/fix-bad-pngs

Fix PNGs with incorrect color profile.
Improve X11 keyboard emulation.

Make sure every key event time is different than the previous one, to
avoid some applications thinking its an auto-repeat.
Merge branch 'fix-jumbled-output'
Merge pull request #112 from benoit-pierre/fix-jumbled-output

Improve X11 keyboard emulation.
limit the time variable to the min max legal value for unsigned long
Merge pull request #113 from balshetzer/master

limit the time variable to the min max legal value for unsigned long
Don't suppress keyboard at sidewinder machine init.
Improve X11 keyboard suppression by using grabs.
Merge branch 'improve-keyboard-supression'