Adding call information to conversations: updated scheduler to import from twilio, save to db, add tab in conversations view
Updating calls view
Merge branch 'develop' of github.com:/postcode/promptly into adding_calls
Adding calls data to response chart for now
Adding calls to model to enable chart
Undoing db/schema change and adding migration script for call_id
Merge branch 'develop' of github.com:/postcode/promptly into adding_calls
Adding intial tests for calls
Making calls its own graph
Merge pull request #3 from postcode/adding_calls

WIP: Adding calls