Author: Steve Massicotte
MDL-80967 Authentication: Login page - Hide the login form
http://git.moodle.org/gw?p=moodle.git;a=commit;h=fd4ebbf932548983c1bb9c64d38dd78d4735e520
http://github.com/moodle/moodle/commit/fd4ebbf932548983c1bb9c64d38dd78d4735e520
+ 4.5 en [showloginform,core_auth]
+ 4.5 en [showloginform_desc,core_auth]