translation update

[Till Rettig]

Hi John,

I like the new version of the install/getting-started.html -- I hope I 
will have time on the weekend to update the German translation. Actually 
it seems I won't be able to do the check-translation as often as you 
mentioned it, but at least once a week should be possible.
But then I didn't really understand how to get the other parts of the 
program via git, I mean the .po file for the program itself to translate 
that (as you suggested to Daniel), and then sometimes finally the 
documentation/tutorial.
How do I change the git pull (I guess that is it about) command to get 
also the other parts from the git repository? And is it wise to do this 
in the same folder (now named to git web/master) or should I do it in 
another folder then?

Greetings
Till