Author: Andrew Robert Nicols
MDL-32005 Add idnumber field to groups and groupings
http://git.moodle.org/gw?p=moodle.git;a=commit;h=74b714df7e18284057f0599d4e480547c0f014ce
http://github.com/moodle/moodle/commit/74b714df7e18284057f0599d4e480547c0f014ce
+ 2.3 en [groupexistforcoursewithidnumber,core_error]
+ 2.3 en [grouphasidnumber,core_error]
+ 2.3 en [groupinghasidnumber,core_error]
+ 2.3 en [idnumbergroup,core]
+ 2.3 en [idnumbergroup_help,core]
+ 2.3 en [idnumbergrouping,core]
+ 2.3 en [idnumbergrouping_help,core]