0.9.0

whats's new in splinter 0.9.0?

• phantomjs support was removed (#592)
• add options argument for chrome driver (#345)
• (bugfix) avoid element.find_by_text searches whole dom (#612)
• add suport for zope.testbrowser 5+
• handle webdriver StaleElementReferenceException (#541)
• add support for Flask 1+
• add support for seleniu 3.14.0
• update lxml to 4.2.4
• update cssselect to 1.0.3