Add Airbrake config for Errbit
Change config/airbrake_production.yml reference to config/airbrake.yml
Merge pull request #51 from rjc123/master

Additions to bouncer whitelist to support DfE
Merge pull request #52 from alphagov/add_airbrake_for_errbit

Add Airbrake config for Errbit
Add instructions for browsing pages in dev
Remove AWS gems and lib/exception_mailer.rb

- Now we're using Airbrake for Errbit, we don't need emails.
Allow the rake gem to be used in all environments, not just test
Switch Airbrake config file from YAML to Ruby

This means that we can load the config directly, rather than having
to load it as YAML and set the configuration again when we want to
use it.
Add a new rake task to notify Errbit of a deploy

Airbrake includes three rake tasks, one of which does deploy notification:

    https://github.com/airbrake/airbrake/blob/v3.1.15/lib/airbrake/shared_tasks.rb

However, that task only loads configuration from Rails initializers, so doesn't
work for Rack apps unless Airbrake's configuration is already loaded somehow.
Since the other two tasks from the Airbrake gem aren't useful to us here
either, we're no longer including them in the Rakefile (one is Heroku-specific
and the other, to test the setup, is even more Railsy than the deploy one).

Instead, we've added a new rake task to notify Errbit of a deploy, which
is very similar to Airbrake's built-in one but loads our config instead
of looking for a Rails initializer.
Bump optic14n to match Transition
Merge pull request #54 from alphagov/bump_optic14n_to_match_transition

Bump optic14n to match Transition
Merge pull request #53 from rjc123/master

Edits to whitelist for NCTL
Merge pull request #48 from alphagov/add_instructions_for_browsing_in_dev

Add instructions for browsing pages in dev
Merge pull request #55 from alphagov/fix_jenkins_failure_airbrake

Fix Rakefile and deploy notification to Errbit
Slight fix to proxy instructions for dev

* Edit sites-available, not sites-enabled
* Add an assumption about Bouncer running
Remove gemfury gem source

Now that we're using a version of optic14n that is available on rubygems.org,
we don't need to get it from gemfury. This should speed up bundling times.
Merge pull request #56 from alphagov/remove_now_redundant_gem_source

Remove gemfury gem source
Update Environment Agency flood rule redirects

- The Environment Agency have finalised the new URLs.
Tighten up the flood path regex

- This tightens up the first `.*` to instead just match `cy/` for the
  Welsh pages, enforces `.aspx` at the end, and captures a possible
  query string.
Make EA rules case insensitive