Merge pull request #11 from handsomegui/master

Chinese translation should be finished for all the UI elements.
update translations and resources
use a manually created QMessageBox dialog instead of a custom one for Report
update translations and resources
add French translation
update translations and resources
bugfix: prevent output files with same name overwriting each other
update Czech translation
1.5.1 changes
version 1.5.1
Merge pull request #3 from Ilias95/master

Pull from upstream.