Start of user picker form component
Minor formatting issue, adding todo comment
Merge branch 'development' of github.com:tickit-project/tickit into feature/user-picker-field

Conflicts:
	app/config/config.yml
Merge branch 'feature/user-picker-field' of github.com:tickit-project/tickit into feature/user-picker-field
Add user converter and decorator classes
Add basic user value converter test
Rename user converter service
Merge branch 'development' into feature/user-picker-field
Change email in user data fixtures
Incomplete work - needs lots of testing
Remove user picker form subscriber class
Improve user entity value converter test
Remove redundent use declaration
Add user entity display name decorator test
Update mock method expectation
Merge branch 'development' of github.com:tickit-project/tickit into feature/user-picker-field
Add form tests for user picker value
Add invalid user data does not break form
Fix code style in UserEntityDisplayNameDecoratorTest
Merge pull request #24 from tickit-project/feature/user-picker-field

Add start of user picker custom form field