Update German translation. Slightly more translated now.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23423 57a11ea4-9604-0410-9ed3-97b8803252fd
i18n update: Remove some almost-duplicate strings by removing unneeded punctuation.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23424 57a11ea4-9604-0410-9ed3-97b8803252fd