Fix for list structure required by spotlight

In order to match what spotlight expects we must wrap the returned list
in 'items'. It is debateable whether spotlight should change rather than
this but considering this end point is only to be used in spotlight it
seems it's better it should happen here.
Merge pull request #238 from alphagov/fix-list-for-spotlight-format

Fix for list structure required by spotlight
Use `ENV_HOSTNAME` instead of lols
Merge pull request #237 from alphagov/http_for_dev

Use http in development as a default
Take a path argument

- Set the location of your prod db dump
Allow test db to be created

- Grant create to stagecraft user so it can create test db (thus run unit tests!)
Fixes to allow `convert-db.sh` to run

- asks for path to temporary db dump
- stops collectd to ensure we don't get port conflict errors
- assumes dump is gzipped (the fabric task to take down a copy of the live db defaults to a .gz file)
restart collectd
Add README to help with importing live db workflow