hide the button toolbar when setting navigationButtonsHidden to YES
hide the button toolbar when setting navigationButtonsHidden to YES

sdonly/TOWebViewController,Kevin775263419/TOWebViewController,z8927623/TOWebViewController,Suninus/TOWebViewController,venj/TOWebViewController,WeaponJ/TOWebViewController,metasmile/TOWebViewController,kevin0571/TOWebViewController,liric28/TOWebViewController,8fit/TOWebViewController,jonesgithub/TOWebViewController