Author: Paul Holden
MDL-71070 report_configlog: convert report to system report.
Convert to system report API provided by Report builder. The entity
defines the columns and filters, which are used by the system
report class we have created.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=07611b5f121ad68a7ec27f71c4ac4a85af1f65de
http://github.com/moodle/moodle/commit/07611b5f121ad68a7ec27f71c4ac4a85af1f65de
+ 4.0 en [entityconfigchange,report_configlog]