[Bindings] Allow ExtendedAttributeList to be Omitted

[Lachlan Hunt]

Hi,
  The definition for ExtendedAttributeList needs to be amended to allow 
it to be omitted when not necessary.

It is currently defined as:

[27] ExtendedAttributeList → "[" ExtendedAttribute ExtendedAttributes "]"

That should be changed to:

[27] ExtendedAttributeList → "[" ExtendedAttribute ExtendedAttributes "]"
                               | ε

http://dev.w3.org/2006/webapi/Binding4DOM/#prod-ExtendedAttributeList

--
Lachlan Hunt - Opera Software
http://lachy.id.au/
http://www.opera.com/