mod/taskchain CONTRIB-4795 fix missing strings: nomorechainattempts and attemptsallowed
mod/taskchain optimize detection and enabling of user editing mode
mod/taskchain fix undefined property cm in jmemori output format
mod/taskchain fix undefined property attempt->score when submitting task attempt
mod/taskchain fix reading of sibling files required for Xerte files
mod/taskchain fix reading of sibling files required for Xerte files
mod/taskchain fix reading of sibling files required for Xerte files