Author: Ilya Tregubov
MDL-78855 tool_uploadcourse: Create instance only if plugin supports it
http://git.moodle.org/gw?p=moodle.git;a=commit;h=5dc60d9f94a4ff772e5e4e3c12a4a996d9bba42c
http://github.com/moodle/moodle/commit/5dc60d9f94a4ff772e5e4e3c12a4a996d9bba42c
+ 4.3 en [errorunsupportedmethod,tool_uploadcourse]