Small update to German translation

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Hopefully last change to po files

While this is a pain for everyone, I decided not to edit out the code
reference noise - after all this is supposed to help translators find
where the text is used in case it's unclear how to translate something.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Updated German translation

This translation update was done with poedit which usually creates hugh
amounts of noise because of the different format of text location
references. By post-processing the file with

msgcat --no-wrap po/de_DE.po -o po/de_DE.po

the diff becomes MUCH smaller and much easier to read...

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
New Makefile target to create smaller diffs for translations

Simply run

make prepare-po-files

and msgcat will be run over all po files to create consistent location
references. That plus the change I made earlier to how we update the po
files should create much smaller and easier to read diffs for translators.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Updated Swiss German translation

Just to show the advantage of running make prepare-po-files before
submitting a patch.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>