Author: Adrian Greeve
MDL-25275 - mod/data - Added a check box to eliminate date searches if desired.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=caa0e70577066e4ad96fc58b6125246af0afc63f
http://github.com/moodle/moodle/commit/caa0e70577066e4ad96fc58b6125246af0afc63f
+ 2.3 en [usedate,mod_data]