Author: David Mudrák
MDL-70608 lang: Install langpacks asynchronously via ad hoc task
When multiple language packs are selected for installation, perform the
installation asynchronously in the background via ad hoc task.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=b21d42830791d31e1dd275a213a4bcddd11dba31
http://github.com/moodle/moodle/commit/b21d42830791d31e1dd275a213a4bcddd11dba31
+ 3.11 en [installfailed,tool_langimport]
+ 3.11 en [installfinished,tool_langimport]
+ 3.11 en [installpending,tool_langimport]
+ 3.11 en [installscheduled,tool_langimport]