DavidBurns adding another vendor prefix and trim support for older browsers where trim() isnt native
DavidBurns adding another vendor prefix and trim support for older browsers where trim() isnt native

r18089

krosenvold/selenium-git-release-candidate,krosenvold/selenium-git-release-candidate,krosenvold/selenium-git-release-candidate,krosenvold/selenium-git-release-candidate,krosenvold/selenium-git-release-candidate,krosenvold/selenium-git-release-candidate,krosenvold/selenium-git-release-candidate,krosenvold/selenium-git-release-candidate