extract StripeWrapper
setup VCR, and using it to testing StripeWrapper
Charge credit card on registration
setup selenium-webdriver, database-cleaner, Capybara.server_port
add question list
setup Capybara Webkit
Feature test for registration with credit card
fix problem of testing must add sleep
fix twice submit, because application.js also including the payments.js, so not need using javascript_include_tag
using date form_now to guarantee the testing always pass
using github syntax in gemfile
add invited firend need sign in to check follow
clear emails when begin testing
Merge pull request #11 from ArthurPai/feature/week7_mod1

Feature/week7 mod1