Info bar: Fix the chapter not being shown if the beginning of the file doesn't belong to a chapter.
Updated German translation.
Updated German translation (installer).

Closes pull request #101.
Updated Russian translation
Merge pull request #102 from kefir500/master

Updated Russian translation
Remove superfluous spaces.
Update Unrar to 5.0.9.
Update Authors.txt.
Update coverity.bat.
Update VirtualDub to v1.10.4-test11.
Reduce variable scope.
Options Dialog: save right after pressing Apply

Fixes #2242, #2373