added html property to zopetestbrowser driver
added html property to zopetestbrowser driver

cobrateam/splinter,drptbl/splinter,bubenkoff/splinter,gjvis/splinter,objarni/splinter,gjvis/splinter,myself659/splinter,myself659/splinter,bmcculley/splinter,drptbl/splinter,lrowe/splinter,objarni/splinter,gjvis/splinter,lrowe/splinter,myself659/splinter,nikolas/splinter,bmcculley/splinter,underdogio/splinter,objarni/splinter,cobrateam/splinter,lrowe/splinter,bubenkoff/splinter,nikolas/splinter,cobrateam/splinter,underdogio/splinter,nikolas/splinter,bmcculley/splinter,drptbl/splinter,underdogio/splinter