d27

The only difference between ordinary and extraordinary is just that little "extra".

Update validation for adding learners to a learning circle and tweak templates

Add notification for when facilitators are removed. Fix update and template errors

Merge branch 'lc-co-facilitators' of personal:p2pu/learning-circles into lc-co-facilitators

Implement handling for facilitators in update API view and add Facilitator entry for user creating a learning circle

Add data migration to copy facilitator data into new database representation. Closes