If git >= 2.0, sort tags in descending order by version number
Merge pull request #525 from linquize/tag-sort-reverse

sort tags in descending order by version number
Add and translate missing German strings for user page
Updated Dutch translations

Fixed some spelling mistakes.

* Number up to 20 are written as words instead of digits.
* Nouns are written without spaces.
* Fixed mixups between informal/formal language.
* Removal of extra spaces in sentences.
Merge pull request #530 from chk1/master

Add and translate missing German strings for user page
Merge pull request #531 from basilfx/dev

Updated Dutch translations
Fix #522