Update client.de.yml

Updated it to sound more natural in German and corrected some errors

Can anyone tell me where "latest_by: "latest by"" is used? I can't find it.
Update client.de.yml

Changes in admin section
Some small changes

Will squash later...
Adding additional RU translations
Updated French tranlations
Merge pull request #1989 from Dreami/patch-1

Update client.de.yml
UPDATE: latest version of Rails
UPDATE: sidekiq
UPDATE: omniauth gem and some others

needed to update omniauth for security issues
revising color variables appwide, also some adjustments to "topic not found" page
Merge pull request #2002 from awesomerobot/master

color variable adjustments, topic not found page adjustments
Translate client into Chinese.
Merge branch 'fix_commit'
Merge pull request #2001 from voisintotoro/trad20140215

Updated French translations
Merge pull request #1997 from dmitry/locale_ru

Adding additional RU translations
Fix: apply excludes for user aliases in user selection view

 - fixes a missing reassignment to the new named variable causing the selection of group aliases to fail in the user selector view of private messages
 - apply the list of excludes when a user selects a group alias to prevent double selection of users already in the list and selection of oneself
Merge pull request #1988 from ligthyear/fix-system-group-aliases

Fix group aliases causing private messages to not be created