Update PhantomJS to 1.9.0

PhantomJS updated to 1.9.0: 38f3477a889fe2c6d917cccbdde89929ff23e142
Code improvements (you must not accept this): 54484dcf11e55eaa4aed7482419b029cdf6d0797
Travis CI build status added: fc63f6a634e104088a379ca541c88983c8918cfc