Author: Martin Mastny
MDL-39319 langimport: Able to delete more languages at once
http://git.moodle.org/gw?p=moodle.git;a=commit;h=6ddf92c7749d88818a6def5a807d298b19dc867e
http://github.com/moodle/moodle/commit/6ddf92c7749d88818a6def5a807d298b19dc867e
+ 3.0 en [langpacknotremoved,tool_langimport]
+ 3.0 en [uninstall,tool_langimport]
+ 3.0 en [uninstallconfirm,tool_langimport]