Merging in master
Minor formatting changes
Add OPAT Review to OPAT columns. refs #392
Merging diagnosis
Enables OPAT flow, and episode pathways for OPAT.
FFS clashing migrations
Invalid field length
Bump version number
Merging master
Make button smaller refs #403
Merge remote-tracking branch 'origin/opat' into walk-in

Conflicts:
	elcid/schema.py
	elcid/settings.py
	requirements.txt
Add Observation column to Walk-in views
Diagnosis controllers should live in elcid
Hide teams section if there are no teams to choose from
Add new walk-in flow