Mikael Lenander

# Description **What?** When a teacher opens the submissions modal by clicking "View all submissions", it raises zero division exception. This pr fixes the bug. **Why?** No one likes bugs....

# Description **What?** Shows the difference of the student submission and model submission in the inspect page in git style. Green lines indicate the lines that the student has "added"...

# Description **What?** Sends an update to Jutut when a student has read a feedback response. **Why?** For urgent messages, teachers need to know whether the student has read the...

# Description **What?** Now also chapters that are marked as model answers for a module are hidden after the lifesupport time passes. **Why?** Model answers should be hidden after the...