Author: Jamie Pratt
MDL-47494 ddmarker: NOBUG some lang string changes
http://git.moodle.org/gw?p=moodle.git;a=commit;h=3ed6823de47d7849e68a0493b8eafae36e50b65f
http://github.com/moodle/moodle/commit/3ed6823de47d7849e68a0493b8eafae36e50b65f
+ 3.0 en [ddmarker_help,qtype_ddmarker]
+ 3.0 en [followingarewrongandhighlighted,qtype_ddmarker]
+ 3.0 en [refresh,qtype_ddmarker]
+ 3.0 en [showmisplaced,qtype_ddmarker]
+ 3.0 en [shuffleimages,qtype_ddmarker]
- 3.0 en [addmoredropzones,qtype_ddmarker]