Notification of string changes

Author: Zig Tan
MDL-61568 repository_dropbox: Implement privacy providers


http://git.moodle.org/gw?p=moodle.git;a=commit;h=1414c0c83a3b1effd698fcceabd45fbdef40213c
http://github.com/moodle/moodle/commit/1414c0c83a3b1effd698fcceabd45fbdef40213c

+ 3.3 en [privacy:metadata:repository_dropbox,repository_dropbox]
+ 3.3 en [privacy:metadata:repository_dropbox:query,repository_dropbox]