Author: Ryan Wyllie
MDL-64821 mod_forum: add modern display mode option
Add the "modern" display mode option to the view selector.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=b7c27c21582d7ad8063631e02905ed2c3670b430
http://github.com/moodle/moodle/commit/b7c27c21582d7ad8063631e02905ed2c3670b430
+ 3.8 en [modemodern,mod_forum]