MDL-13481 Strings fullname and shortname are now deprecated

MDL-13481 Strings fullname and shortname are now deprecated

This is a final cleanup commit of fullname and shortname issue. All
places where these strings were detected yet have been replaced with
proper fullnamecourse or fullnameuser or some other context specific
string.

AMOS BEGIN
 CPY [fullname,core],[outcomefullname,core_grades]
 CPY [shortname,core],[outcomeshortname,core_grades]
 CPY [name,core],[rolefullname,core_role]
 CPY [shortname,core],[roleshortname,core_role]
AMOS END