Add Twilio gateway
Clean up

Remove gateway.rb and provider.rb files
Add missing Providers::Base.url method
Add small improvements to specs
Fix fake_page_without_match helper spec function
Add ability to set provider and gateway other than defaults
Add runner
Add executable fc-reminder command
Use RSpec 3.0.0.beta1
Improve a little bit reminder_spec
Change exception message
Change url address of LiveScore
Fix FCReminder::Reminder