Author: Petr Skoda
MDL-27982 remove unsigned support from all UIs and APIs, keep only public API for BC
http://git.moodle.org/gw?p=moodle.git;a=commit;h=7e522ccbc8d79d96066207fe4ce3ebdeac5e91fb
http://github.com/moodle/moodle/commit/7e522ccbc8d79d96066207fe4ce3ebdeac5e91fb
- 2.3 en [mysqlextracheckbigints,tool_xmldb]