Author: Vadim Dvorovenko
MDL-26562
http://git.moodle.org/gw?p=moodle.git;a=commit;h=5429460127cfb193f31926fa60d6189d195461bd
http://github.com/moodle/moodle/commit/5429460127cfb193f31926fa60d6189d195461bd
+ 2.3 en [overviewnumpostssince,mod_forum]
+ 2.3 en [overviewnumunread,mod_forum]