Only update the slicing progress bar if there was more then 1% change on it.
Do not render the focus objects if we do not have the mouse on the 3D window, increases performance a bit.
Implement fallback in case shader support is missing. I still think this is caused by missing OpenGL drivers. But windows users are general idiots.
Update on the fallback support, proper colors now.
Show why overhang view is not working.
Remove the revolution from the title, looks silly.
Merge branch 'SteamEngine' of github.com:daid/Cura into SteamEngine