Mark Paine questions

Mark Paine answers

• Capistrano deploy how to use use_sudo and admin_runner
• Pjax animations
• Prevent ruby on rails 3 from parsing JSON post
• How to call an app helper method from an RSpec test in Rails?
• SQLite with skip (offset) only (not limit)
• Generating Paypal Signature, 'X-PAYPAL-AUTHORIZATION' in Ruby