create feature spec that adds a new user
create sign_in helper method for feature specs
refactor sign in process with sign_in helper method
create about_us_spec file for js modal test
finsih feature spec that tests AboutUs modal
config RSpec to use DatabaseCleaner's truncation method when running through the selennium driver
monkey patch ActiveRecord to use threads
-m Why is this necessary? it's because of how selennium handles database transaction. Might get weird error messages because of tests not properly cleaning up after themselves.
Merge pull request #2 from iMuzz/chapter_8_feature_specs

Chapter 8 feature specs