Author: Petr Škoda
MDL-34441 add CLI database migration script
http://git.moodle.org/gw?p=moodle.git;a=commit;h=de25ddd331c82a1ef8ce565235c6918c88758a8d
http://github.com/moodle/moodle/commit/de25ddd331c82a1ef8ce565235c6918c88758a8d
+ 2.3 en [clidriverlist,tool_dbtransfer]
+ 2.3 en [cliheading,tool_dbtransfer]
+ 2.3 en [transferringdbto,tool_dbtransfer]