Author: Ferran Recio
MDL-75149 mod_data: add preview to presets
http://git.moodle.org/gw?p=moodle.git;a=commit;h=2b48b29c86b451cfbb8af9599046ea010a462c4d
http://github.com/moodle/moodle/commit/2b48b29c86b451cfbb8af9599046ea010a462c4d
+ 4.1 en [sample,datafield_picture]
+ 4.1 en [sample,datafield_text]
+ 4.1 en [sample,datafield_textarea]
+ 4.1 en [nopreviewavailable,mod_data]
+ 4.1 en [preview,mod_data]
+ 4.1 en [savesuccess,mod_data]