Remove RSpec fast-failing

When this is turned on, I'll run `rspec` and see only one failure. After fixing
it, I'll see another, and so on. Turning this off lets people know how many
failures they actually have. Seeing every failure can also help users with
debugging, since one change may have caused many failures, and seeing every
failure can help track down the bug.
Remove better_errors

* We're using unicorn as our default server
* better_errors is not compatible with unicorn
* Instead of error context, you just see "Session expired"
* The default Rails behavior is more reliable

https://github.com/charliesome/better_errors/issues/40
Upgrade New Relic agent for Postgres security fix

https://docs.newrelic.com/docs/traces/security-for-postgresql-explain-plans
Generate .travis.yml

We want to generate this file because:

* We're using Travis on a lot of projects
* It requires configuration to run builds and notify us
* We can skip some boilerplate by starting out with a sane config

The generated config makes sense because:

* It can run Ruby builds out of the box with our Ruby version
* It reduces noise for Campfire notifications
* It reduces volume in the queue by avoiding unnecessary branch builds

This also refactors handling of Ruby versions to move interpolation into
templates where possible.
Enable using just `t` (not `I18n.t`) in specs
Bump version to 1.9.0
Set Sass-Rails Version

* I've gotten the error `undefined method 'environment' for
  nil:NilClass` on projects I've recently started with Suspenders.
* Upgrading the sass-rails version solves this issue.
Be less restrictive about sass-rails version

Per @derekprior's comment, we just need a minimum:

https://github.com/thoughtbot/suspenders/pull/303#discussion_r10825370
Bump to 1.9.1
fix small typo in unicorn.rb
Make it easy for developers to join Heroku apps
Enable SMTP/TLS in SMTP settings

Be more secure by default.

https://en.wikipedia.org/wiki/STARTTLS

Recommended by SendGrid, our usual email provider.

http://sendgrid.com/docs/Integrate/Frameworks/rubyonrails.html
Add rspec config to treat symbols as metadata keys with true values

RSpec output contained a warning when I ran the factories spec because
of the :factory tag; RSpec 2 expects a hash instead of a symbol. Adding
this line to the config quiets the warning, and allows behavior that
will be default in RSpec 3.
Bump to 1.9.2
Fix Delayed::Job <-> Rails 4.1 dependency conflict

Fixes:

    Bundler could not find compatible versions for gem "activerecord":
      In Gemfile:
        delayed_job_active_record (>= 4.0.0) ruby depends on
          activerecord (< 4.1, >= 3.0) ruby

        rails (>= 4.0.3) ruby depends on
          activerecord (4.1.0)

https://github.com/collectiveidea/delayed_job_active_record/pull/86
Correct has_gem_included? test helper

It was always looking for rails_12factor, it now uses the actual gem
name that is passed in and makes sure it is usable in a Regex.
Replace "test factories first" code with FG.lint

This is now in FactoryGirl itself (beginning with version 4.4.0) so we
don't need to maintain custom code.

https://github.com/thoughtbot/factory_girl/commit/6a692fe711
Bumpt to 1.9.3
Fix app name in staging config

* ".classify" turns "app_name" -> "AppName" but "app-name" -> "App-name"
* Use gsub to turn dashes unto underscores before calling ".classify"
* This makes the app name consistent with how rails converts the app
  name in other config giles