While doing this, I found various bugs in the manages question types admin page, and so fixed them, and updated the code
there to use $OUTPUT and html_writer.
AMOS BEGIN
MOV [cannotdeletemissingqtype,admin],[cannotdeletemissingqtype,question]
MOV [cannotdeleteqtypeinuse,admin],[cannotdeleteqtypeinuse,question]
MOV [cannotdeleteqtypeneeded,admin],[cannotdeleteqtypeneeded,question]
MOV [deleteqtypeareyousure,admin],[deleteqtypeareyousure,question]
MOV [deleteqtypeareyousuremessage,admin],[deleteqtypeareyousuremessage,question]
MOV [deletingqtype,admin],[deletingqtype,question]
MOV [numquestions,admin],[numquestions,question]
MOV [numquestionsandhidden,admin],[numquestionsandhidden,question]
MOV [qtypedeletefiles,admin],[qtypedeletefiles,question]
MOV [uninstallqtype,admin],[uninstallqtype,question]
AMOS END
