Attempt to discover why study selection isn't working. I suspect dodgy sequencer references...
Merge branch 'github-develop' into partition-study-selection
MISO-66: Fix container lookup process destroying the session object. Page reload required, but more foolproof.

Pools can now be removed from containers where the container hasn't been placed on a run yet, or if the user is an admin (even if it has been placed on a run)
MISO-66: Fix partition population by double clicking pools in edit container page