*7846* updated de_DE locale for lucene plugin, re: 885e0a5fc7 and 28ab591c9a
*7846* minor revision of de_DE locale
*7846* removed typo
Merge pull request #80 from mtub/20130629-de-locale-updates

20130629 de locale updates
*8257* SQL bug fix
*8310* Fixed unquoted string true
*6517* Add prism volume number
Update doxygen OJS version number
fix upgrade problems
*8330* datacite export plugin and html entities
*8330* medra export plugin and html entities
*8343* Fixed missing variable fetch
*8353* Allow override of current locale via URL
*8353* Allow locale set by URL (fix parameter name to avoid clobber)
*8359* Use mdash for referrals without titles
Correct external use of protected method (from Bozana)
*8396
*8254* Introduced metrics structure
*8254* Backport usage events plugin
*8254* Backport usage stats plugin