Author: Mark Nelson
MDL-29538 core_condition: changed the logic in the code so that it works with the new database structure as well as tidying up parts of the code
http://git.moodle.org/gw?p=moodle.git;a=commit;h=cb4492c2001e5ac2f914d7612b46d5ce63ff30ec
http://github.com/moodle/moodle/commit/cb4492c2001e5ac2f914d7612b46d5ce63ff30ec
+ 2.4 en [requires_user_field_restriction,core_condition]
+ 2.4 en [userfield_help,core_condition]