Student 6.6.0 (199)
Addresses the following issues in 198:
- [student][MBL-13019][RC-6.6] Fix assignment deets discussion crash (#217)
- [Student][HOTFIX][R-6.6.0] Temporarily hide submission button on submission details page (#222)
- [Student][MBL-13026][R-6.6.0] Fix missing label for LTI assignments (#221)
- [Student][MBL-13010][R-6.6.0] Fix double toolbar in global lti's (#218)
- [MBL-13016][Student][R-6.6.0] Fix submission details crash after process death (#216)