Author: Laurent David
MDL-73254 mod_bigbluebuttonbn: Fix hide recording functionality
* The hide recording is working in combination with several settings and should
allow the Record button to be hidden either globally on in a given activity
http://git.moodle.org/gw?p=moodle.git;a=commit;h=9877868c6f79d744ff90ff6a2379966cf3a0ea9c
http://github.com/moodle/moodle/commit/9877868c6f79d744ff90ff6a2379966cf3a0ea9c
+ 4.0 en [config_recording_hide_button_default_description,mod_bigbluebuttonbn]