Author: Shamim Rezaie
MDL-65142 dataformat_pdf: New dataformat for pdf
http://git.moodle.org/gw?p=moodle.git;a=commit;h=5b7878993d594ad944d1563812974c85abf1ed39
http://github.com/moodle/moodle/commit/5b7878993d594ad944d1563812974c85abf1ed39
+ 3.7 en [dataformat,dataformat_pdf]
+ 3.7 en [shortname,dataformat_pdf]