fix message
Merge branch 'taoran' into default
Merge branch 'default' of https://github.com/cbretton/SINF2255 into default
Merge branch 'default' into taoran
class_diagram modified
Merge branch 'default' of https://github.com/cbretton/SINF2255 into default
Merge branch 'default' into taoran
Merge branch 'taoran' into default