fixed has_one_and_belongs_to in campaign
1. cleaned up .gitignore, 2. got ruby 2.0.0, 3. integrated database-cleaner, 4. moved social button images to images folder because test couldnt find, 5. updated css-social-buttons to reflect where i moved social button images, made css-social-buttons a scss file 6. removed after_sign_in_path_for devise, 7. updated test so it works: a. sequenced emails, b. created host for events, c. turned off transactional fixtures