Do not use the actual email address in development

Using the actual e-mail address used to login to govdelivery staging
combined with a bad password can cause developers booting the e-mail
alert API up on VM's/their local machines to lock the staging account on
govdeliveries side.
Merge pull request #33 from alphagov/fake-gov-delivery-config

Do not use the actual email address in development
Delete everything.
Basic Rails 4.1.6 API.
Creating subscriber lists.
Add finding subscriber lists by tags.
Add getting subscriber lists.
Add notifications.
Statically load the govdelivery client.

Prevents issues with unloading in development.
We're an API, so null the session on CSRF issues.
Return the root element for subscriber list JSON.

Matches the existing API.
Add a sidekiq config, loading redis & errbit.
Use `template0` for DB connection params

This allows us to fall back to current user in development and test environments.
Create `hstore` extension in `db:create` Rake task

In production-like environments this is created by Puppet; in
development and test we'll have `sudo` so run the command explicitly ourselves.
Add scripts for CI

This adds a master CI build script and a branch building script.