Created german translation

Would it be better to rename Type to Datatype?

Why do you remind the user "without <code>&lttemplatedata&gt</code>"? Simply trim it away instead of adding a lot of blah blah to the User Interface.
Sanitizing TemplateData imports

... so UI message clutter *but do not include <templatedata>* can be removed.
Trimming result; avoids "unexpected whitespace character" error
Added german translation
Merge pull request #8 from Rillke/master

Created german translation & sanitizing TemplateData imports
Adjusted merged (56b6776) code

 - added link to Rillke's user page on Commons
 - removed not-needed whitespace trimming
 - removed now-not-needed info about <templatedata>
   tags from the import window
 - added trimming of <templatedata> before on-the-fly
   checking of json syntax correctness
Remove old message