Update Qt translations from qt 4.8.4

This contains some translations from Qt 4.8.4 that seem different from the ones in the repo binary wise. So I assume that these are updated. I have used them in the 3.0.7/3.0.8 windows builds.

Also there seem to be 2 new languages: ***qt_fa.qm*** and ***qt_sl.qm*** should I include them too?