Add deprecation note about WebElement::describe (see #144)
Update readme note about addressing the 2.42.x issues
v0.2002

        [BUG FIXES]
        - #135, #136, #142: Fix compatability issues with JSONWireProtocol changes in 2.42.2

        [NEW FEATURES]
        - Add an optional base_url parameter for automatic concatenation in get/get_ok