Update to German translation
Update to German translation

* subversion/po/de.po
  applied and reviewed patch from Jens Seidel, translated a few more strings
  and fixed a lot of inconsistencies
  
Patch by: Jens Seidel
Review by: me

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion