Author: Frederic Massart
MDL-39954 mod_workshop: Log method can return array of parameters
http://git.moodle.org/gw?p=moodle.git;a=commit;h=cbf4b0e6f68e45a2bd6f225be4a30c077c12f8da
http://github.com/moodle/moodle/commit/cbf4b0e6f68e45a2bd6f225be4a30c077c12f8da
+ 2.6 en [event_assessable_uploaded,mod_workshop]
+ 2.6 en [event_assessable_uploaded_desc,mod_workshop]