Code cleanup in pie menu

Cleaned up hover logic and slice from x and y code duplication
(Best viewed without space changes)
Let shift-left-clicking in the middle of subpiemenus move back to the parent piemenu!
Actually fix the french translations (codepage borks yay) Thanks Nomade
Add option to disable scroll offset changing modifier
Err closer to LL regarding shadows, however also fixed alpha face shadows to look like all other shadows.
Retain cubemap reflection on shiny faces while in shadowed, but don't bloom the sun reflection.
Avoid needless second pass on non-glow particles.
Added setting 'SHAlwaysSoftenShadows' to soften shadows when ssao isn't enabled. Removed a couple dead settings.
Merge remote-tracking branch 'lightdrake/master'
Merge branch 'master' of git://github.com/Shyotl/SingularityViewer