Author: Andrew Hancox
MDL-51306 mod_folder: Add button to download entire folder.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=279918e126c3eb849a77fec1fc9420673ec8463d
http://github.com/moodle/moodle/commit/279918e126c3eb849a77fec1fc9420673ec8463d
+ 3.1 en [downloadfolder,mod_folder]
+ 3.1 en [showdownloadfolder,mod_folder]
+ 3.1 en [showdownloadfolder_help,mod_folder]
+ 3.1 en [maxsizetodownload,mod_folder]
+ 3.1 en [maxsizetodownload_help,mod_folder]