Upgrade to Rails 4.2.0.rc1 and remove Foreigner Gem
silence Rails transaction error warnings
Infer spect type from location
Use new #deliver_now method
Use be_falsey/be_truthy instead of be_true/be_false. Silences deprecations.
Upgrade to rails 3. Add rspec-its and rspec-collection_matchers gem
Clear ActionMailer::Base#deliveries after integration specs

Rspec only clears ActionMailer::Base#deliveries in mailer specs
Fix SQLite3::RangeException: bind or column index out of range error.