PHPDoc / PSR-1
PHPDoc/cleanup
PHPDoc
PHPDoc
PHPDoc
PHPDoc
PHPDoc
PHPDoc
Change server side data call from GET to POST

Removed call to fnFilter in datatables init code as this generated an
additional network call, the filter data (if any) is now passed as a
parameter in the server side ajax call
Use URL parameter to pre-filter list of users
Unused code
Update gitignore
Polyfills for unpatched versions of PHP 5.3.2 - 5.3.6 not working.  They are probably not needed at all.
#278 - explicit deletion of user preferences
Performance - do not check fact privacy twice
Updated NB translation by Eyolf
PHPDoc
Users cannot visit 'my page' of trees for which they have only visitor access
Fix #1382999 / #277 - errors when a module stops implementing an interface
Sync submodules.