Update ChangeLog for 1.9.6.
Update ChangeLog for 1.9.6.

https://github.com/ariya/phantomjs/issues/11905

kinwahlai/phantomjs-ghostdriver,kinwahlai/phantomjs-ghostdriver,kinwahlai/phantomjs-ghostdriver,kinwahlai/phantomjs-ghostdriver,kinwahlai/phantomjs-ghostdriver,kinwahlai/phantomjs-ghostdriver,kinwahlai/phantomjs-ghostdriver