thoughtbot/capybara-webkit — pull request #675 by achempion (2014-10-21 15:32:28+00:00)
Title: fix missed `browser_initialized?` method

Few weeks ago capybara introduced a new driver method that missed in our driver specification (https://github.com/jnicklas/capybara/issues/1237).

After updating gems versions, I run tests and seen an exception:
`undefined method `browser_initialized?' for #`

We can resolve this and possible future updates just inherited from default web driver, for example, like it was implemented in poltergeist web driver (https://github.com/teampoltergeist/poltergeist/blob/master/lib/capybara/poltergeist/driver.rb#L4)