Author: Simey Lameze
MDL-44467 core: mail settings and navigation improvements
This commit groups all mail settings under Server node, splitting into
two categories: Outgoing mail configuration and Incoming mail configuration.
Also, it make maildomain setting available on the Email settings page.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=ff2abc4b7d37ea284d9fc6caa859665f778ed381
http://github.com/moodle/moodle/commit/ff2abc4b7d37ea284d9fc6caa859665f778ed381
+ 3.2 en [categoryemail,message_email]
+ 3.2 en [configmaildomain,message_email]
+ 3.2 en [configemailonlyfromnoreplyaddress,message_email]
+ 3.2 en [outgoingmailconfig,message_email]
+ 3.2 en [sendusinguseremail,message_email]
+ 3.2 en [maildomain,message_email]