Author: Petr Skoda
MDL-28337 add parameters explanation in URL resource configuration
http://git.moodle.org/gw?p=moodle.git;a=commit;h=f08e5e984a518d2b3ffcfa68522ebaecec1e2863
http://github.com/moodle/moodle/commit/f08e5e984a518d2b3ffcfa68522ebaecec1e2863
+ 2.2 en [parameterinfo,mod_url]
+ 2.2 en [parametersheader_help,mod_url]