Add 'migrate' command to webui for compat with newer Django
Add 'migrate' command to webui for compat with newer Django


Former-commit-id: bf3ef3fb580076045f3f2c554ccb1826b8110deb [formerly f569aa9cf531a41492dea237be6bce19cffca1e3]
Former-commit-id: acee52e59890f84984f6db88530d616f763dbe2b
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine