Move inlined TODOs to GH issues #295
Clean up README #295
Don't require factory_girl in .rake files

It isn't available or needed in production, but the rake task
definitions still need to be loaded.
Add mailer preview #311
Use Warden test mode for testing logged-in users

Repeating the log in specs before every feature spec was eating up close
to half of the test time.
Replace client-side filter with active country in session #295, #304

Admins now set an active country and then manage orders as a PCMO from
that country would. This should solve most of the "forgetful" complaints
we've had about admin activity, along with allowing us to sort and
paginate everything easily and consistently server-side.

The filter was the most substantial bit of javascript, so I went ahead
and moved the other bits to where they are used. It's not as cleanly
extracted, but for infrequently-developed codebases like this, the
increased code locality is a win.
Extract partials from new response template
Paginate personal request history
Pagniate all order tables #304
Misc minor tweaks / fixes
Update en.yml

Changed fulfillment to further action.
Update en.yml

changed "unparseable" message
Update help.html.haml

Cleaned up formatting.
Update spec for wording change
Unscope the Order#pluck call for Country#with_orders

The default scope adds a sort order to a column which we don't want to
pluck here.
Remove pcmo_id selection. Fixes #316
Wording tweaks #294
Display currently active country for admins
Restore request special instructions. Fixes #314
Nav cleanup #315