Translated some of the new phrases for MODX 2.3.0 to German. Parts of topmenu.inc.php still have to be translated (will be done next week).

Signed-off-by: Jan-Christoph Ihrens <ihrens@cc-services.de>
Translated the rest of the new phrases of MODX 2.3.0-dev to German

Signed-off-by: Jan-Christoph Ihrens <ihrens@cc-services.de>
Update German lexicon topics

Merge remote-tracking branch 'origin/pr/694' into develop

* origin/pr/694:
  Translated the rest of the new phrases of MODX 2.3.0-dev to German
  Translated some of the new phrases for MODX 2.3.0 to German. Parts of topmenu.inc.php still have to be translated (will be done next week).
Merge remote-tracking branch 'origin/pr/696' into develop

* origin/pr/696:
  Help Page Improvements
  CSS Twerks
Fix error with package management caused by #691
Fix issue where selecting search results did... nothing
Added IN output filter

Search inside comma delimited string. 

Example: [[*tv:IN=`blaat,test,value`:then=`Yes there is`:else=`No there isn't`]]
Add preg_quote to friendly_alias_word_delimiters characters

This allows you to add / as a friendly_alias_word_delimiter without breaking the regex
Fix loading of plugin events on Create Plugin screen
Fix tree button positions in Firefox

Merge remote-tracking branch 'origin/pr/699' into develop

* origin/pr/699:
  Fix Mispositioned Tree Buttons in Firefox
Fix issue where selecting search results did... nothing

Merge remote-tracking branch 'origin/pr/700' into develop

* origin/pr/700:
  Fix issue where selecting search results did... nothing
Add in/inarray conditional output filter

Merge remote-tracking branch 'origin/pr/702' into develop

* origin/pr/702:
  Added IN output filter
Fix loading of plugin events on Create Plugin screen

Merge remote-tracking branch 'origin/pr/704' into develop

* origin/pr/704:
  Fix loading of plugin events on Create Plugin screen
Support PHP use statements in Snippets and Plugins

This provides a more long-term solution for and closes #557
Fixes Tree Context Refresh Positioning Bug