This is part of moving away from `postcode` and towards `address line 7`
We think it will be easier for people to map their existing data to our
API if we let them fill in any 3 lines, instead of requiring at least
1, 2, and postcode specifically.
* create template folder
* rename template folder
* get list of template folders for service (not nested/presented in any
particular way)
* delete template folder
Also removed `lazy=dynamic` from the `template_folder.templates`
relationship. lazy=dynamic returns a query object (which you can then
filter further). We just want to return the entire fetched list, at
least for now.
Switched to using a isinstance check on the string.
Added an order by clause to dao_get_template_usage_stats_by_service, it was causing an itermitten failure in the tests.
similar to sms/email, however, for consistency with response values
and internal storage, rather than supplying an "email_address" field
or a "phone_number" field, supply an "address_line_1" and "postcode"
field within the personalisation object.
