Author: Paul Holden
MDL-68633 mod_forum: confirmation for subscription change navigation.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=079569587224f99cd1f3a1c3da00e4f2839f28ce
http://github.com/moodle/moodle/commit/079569587224f99cd1f3a1c3da00e4f2839f28ce
+ 4.0 en [subscriptionmodeconfirm,mod_forum]