Cleanup of source code:
- translated German to English
- removed useless comment decorations
- removed commented out code
- some reformatting of code

Change-Id: I71d5fdab8226d61bda9ac906bb82176dc11cafd2
Reviewed-on: https://gerrit.libreoffice.org/3643Reviewed-by: David Tardon <dtardon@redhat.com>
Tested-by: David Tardon <dtardon@redhat.com>