Author: Ruslan Kabalin
MDL-29695 cohorts: Add pagination and search to cohorts adminstartion page
http://git.moodle.org/gw?p=moodle.git;a=commit;h=543009cba4c56d28f5db80f9de535b6003f34c91
http://github.com/moodle/moodle/commit/543009cba4c56d28f5db80f9de535b6003f34c91
+ 2.2 en [search,core_cohort]
+ 2.2 en [searchcohort,core_cohort]