Select elements fail to recognise multiple and list options correctly

When creating a webform with select elements, they fail to render correctly both in the end user view and the administrative views. This is because the module checks whether the aslist and multiple options have a value of 'Y', and changes the HTML accordingly. However, the module actually stores these options using 1 for true or 0 for false, so the display breaks. I've attached a patch which simply replaces the 'Y' with 1 where appropriate.