Author: Andi Permana
MDL-87352 admin: Add MoodleNet removal warnings
http://git.moodle.org/gw?p=moodle.git;a=commit;h=e5269918b5d9b32065a07fd6748089a93732c6cb
http://github.com/moodle/moodle/commit/e5269918b5d9b32065a07fd6748089a93732c6cb
+ 4.5 en [removalwarning_feature,tool_moodlenet]
+ 4.5 en [removalwarning_service,tool_moodlenet]
+ 4.5 en [removalwarning_title,tool_moodlenet]
+ 4.5 en [moodlenetremovalwarning,core_admin]