Update selenium-webdriver to version 2.42.0

Running the notes_spec.rb feature test gives me the error pasted below. Updating selenium-webdriver with `bundle update selenium-webdriver` resolves this for me.


eric@penguin ~/Documents/software/packages/fulcrum (master) $ bundle exec rspec spec/features/notes_spec.rb                                                    [19:14:31]
FF

Failures:

  1) Notes full story life cycle adds a note to a story
     Failure/Error: sign_in user
     Selenium::WebDriver::Error::WebDriverError:
       unable to obtain stable firefox connection in 60 seconds (127.0.0.1:7055)
     # ./spec/support/integration_helpers.rb:4:in `sign_in'
     # ./spec/features/notes_spec.rb:9:in `block (2 levels) in <top (required)>'

  2) Notes full story life cycle deletes a note from a story
     Failure/Error: sign_in user
     Selenium::WebDriver::Error::WebDriverError:
       unable to obtain stable firefox connection in 60 seconds (127.0.0.1:7055)
     # ./spec/support/integration_helpers.rb:4:in `sign_in'
     # ./spec/features/notes_spec.rb:9:in `block (2 levels) in <top (required)>'

Finished in 2 minutes 17.8 seconds
2 examples, 2 failures

Failed examples:

rspec ./spec/features/notes_spec.rb:31 # Notes full story life cycle adds a note to a story
rspec ./spec/features/notes_spec.rb:44 # Notes full story life cycle deletes a note from a story