another small correction to c1c19f04b18b9db7b09f1bdf8dc4e8f0a56d95c4, now ignoring non @unwrap header's if they have no value, as before.
another small correction to c1c19f04b18b9db7b09f1bdf8dc4e8f0a56d95c4, now ignoring non @unwrap header's if they have no value, as before.

Ventero/greasemonkey,Ventero/greasemonkey,Martii/greasemonkey,HasClass0/greasemonkey,the8472/greasemonkey,HasClass0/greasemonkey,the8472/greasemonkey,Martii/greasemonkey