Author: Andrew Davis
MDL-13805 core_message: altered some strings so it isnt weird when viewing a different users messages
http://git.moodle.org/gw?p=moodle.git;a=commit;h=d8ef2bc03c6b64d5a60e67f4e90ce343b241af30
http://github.com/moodle/moodle/commit/d8ef2bc03c6b64d5a60e67f4e90ce343b241af30
+ 2.5 en [contactlistempty,core_message]
- 2.5 en [mycontacts,core_message]