Author: Serge Gauthier
MDL-51644 tool_lp: Create persistent model for user_competency
http://git.moodle.org/gw?p=moodle.git;a=commit;h=6d57a987bf43fa73b3ccac846c68a7dab49d326b
http://github.com/moodle/moodle/commit/6d57a987bf43fa73b3ccac846c68a7dab49d326b
+ 3.1 en [usercompetencystatus_idle,tool_lp]
+ 3.1 en [usercompetencystatus_inreview,tool_lp]
+ 3.1 en [usercompetencystatus_waitingforreview,tool_lp]
+ 3.1 en [invalidgrade,tool_lp]