Author: Víctor Déniz Falcón
MDL-13745 admin: add Output mail configuration test
Add a tool for admins to test that the outgoing mail configuration is valid.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=2bf67a74fba8735b6b8d84ddec3495eef10fbf19
http://github.com/moodle/moodle/commit/2bf67a74fba8735b6b8d84ddec3495eef10fbf19
+ 3.7 en [testoutgoingmailconf,core_admin]
+ 3.7 en [testoutgoingmaildetail,core_admin]
+ 3.7 en [testoutgoingmailconf_message,core_admin]
+ 3.7 en [testoutgoingmailconf_errorcommunications,core_admin]
+ 3.7 en [testoutgoingmailconf_sendtest,core_admin]
+ 3.7 en [testoutgoingmailconf_sentmail,core_admin]
+ 3.7 en [testoutgoingmailconf_subject,core_admin]
+ 3.7 en [testoutgoingmailconf_toemail,core_admin]