typo and minor comment on fn:resolve-uri

The 4th paragraph of 11.1 fn:resolve-uri says [1]:

	If the $relativeURI is the zero-length string,
	returns the value of the base-uri property from
	the static context in the first form and $base in
	the second form.

The typo is "$relativeURI" should be "$relative".

The minor comment is that this paragraph should say what happens in the 1st case when the base-uri property is not initialized in the static context (like the paragraph above does), i.e., something like:

	If the $relative is the zero-length string,
	in the first form returns the value of the base-uri
	property from the static context if it is defined
	(if the base-uri property is not initialized in the
	static context an error is raised), in the second form
	returns $base.

pvb