Finnnn questions

• Rails 3 - A model with a one to one relationship to itself - do I need belongs_to
• OSX 10 - Apache refusing to work - how to debug or start from scratch
• removing 'via sendgrid.me' from mail sent using on heroku
• Add data attribute to radio buttons using simple_form.
• Can I change the validation rules required for different actions?
• attempting to recreate a loading gif in css
• Compare string ID to BSON::ObjectId
• Scroll snap css property with overflow y is causing page scroll
• devise/omniauth login with twitter - validation failed: email can't be blank
• twitter bootstrap modal not displaying remote image

Finnnn answers