[0.8.0]

• add support for Firefox incognito mode (https://github.com/cobrateam/splinter/pull/578)

• allow return value for execute_script to be returned (https://github.com/cobrateam/splinter/pull/585)

• chrome_options parameter renamed to options (https://github.com/cobrateam/splinter/pull/590)

• removed deprecated mouseover method

• raises NotImplementedError on status_code in drivers based on webdriver

• phantomjs is deprecated (this driver will be removed in 0.9.0)