Handle urls without quotes and with semicolon

[lykahb]

In the previous PR I broke the case when urls don't have quotes and have weird symbols inside. The fix is to try to parse values with quotes first, then without.

This is a testcase for the fix

#Categories li, .bullet-list li, .location-depth-3 li {
    background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAEBAMAAABb34NNAAAAFVBMVEXyrmHqcBDtdQ3pcRHcbRkAAAD/uSmYi/+cAAAABnRSTlORbFE2DwAwkbURAAAAEUlEQVQI12MIEmEwSwAiIAMAC/AB+fq6WIgAAAAASUVORK5CYII=);
    background-repeat: no-repeat
}

[NxtChg]

Thank you, good catch.

[NxtChg]

Hey, are you on reddit? Or do you have BTC/BCC address? I feel like I should thank you with something more tangible :)

[lykahb]

I have a BTC wallet 1NGxD7QgSYgWmuFSi7yKbWMGH4f9cA1dTK. Thank you for the library!