[Mailman-i18n] German translation

[Mirian Margiani]

I created a new Bazaar branch on Launchpad and pushed my first changes to it:
	lp:~millimarg/mailman/german-translation

I fixed some fuzzy strings, translated strings and reviewed the plain text and 
html templates. And albeit I‘m not finished yet with translating last strings 
still being untranslated in mailman.po [1], at least the templates are finished 
for now.

While reviewing the templates I noticed some (IMHO a bit weird) translations, 
esp. In cronpass.txt [2,3] and admindbpreamble.html [4,5]. I kept them as-is. 
In my opinion it might be useful to adapt these additions to the English 
original text.

There are also some translations in mailman.po [1] whose German translation is 
totally different to the English original, but I have to search them again... I 
don‘t know whether it is intended or not, because they seem to be just "moved 
a bit down“ and now don‘t match their source.

Now the last thing is about formatting: The plain text templates (for emails) 
are very differently formatted. These would be only whitespace changes but I 
think it would be much more appealing to users if the formatting were more 
consistent. In the English templates line breaks are added almost always after 
something around 70 characters, but in the German templates it‘s a bit messy.
I‘m not sure if I shall re-fomat them or not...

However, that‘s all for now...

Regards
Mirian

[1] https://bazaar.launchpad.net/~millimarg/mailman/german-translation/view/head:/messages/de/LC_MESSAGES/mailman.po
[2] https://bazaar.launchpad.net/~millimarg/mailman/german-translation/view/head:/templates/en/cronpass.txt
[3] https://bazaar.launchpad.net/~millimarg/mailman/german-translation/view/head:/templates/de/cronpass.txt
[4] https://bazaar.launchpad.net/~millimarg/mailman/german-translation/view/head:/templates/en/admindbpreamble.html
[5] https://bazaar.launchpad.net/~millimarg/mailman/german-translation/view/head:/templates/de/admindbpreamble.html