Breaking changes

• find_element now returns a Hound.Element instead of a string
• Driver capabilities cannot longer be passed directly to Hound.start_session and need to be passed in the :driver key: Hound.start_session(driver: %{my: "capability"})

New features

• Support changing user agent: Hound.start_session(user_agent: :iphone)
• Support metadata: Hound.start_session(metadata: %{my: :metadata})
• Add search_element/2 and search_element_within/3, which are non raising version of find_element/2 and find_element_within/2
• Add fetch_log/0 and fetch_errors/0 to get JS console output.
• Add Firefox profile

Improvements

• Timeouts now return a normal error instead of failing with a MatchError