Better XInclude schema

Hi,

Attached you will find a better schema for XInclude, based on the one in 
section 3 Syntax of the XInclude specification.

Modifications were:

- Removal of the global fallback element definition.
- Fallback element was moved to local definition inside includeType.
- elementFormDefault="qualified" was added on the schema element 
(alternatively, the local fallback element definition could get a 
form="qualified" attribute).

With this change, the xi:fallback element will no longer show up and be 
valid globally, but only as a direct child of xi:include.

Please keep me CC-ed on responses, as I am not subscribing to the list.

~Grauw

-- 
Ushiko-san! Kimi wa doushite, Ushiko-san nan da!!
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Laurens Holst, student, university of Utrecht, the Netherlands.
Website: www.grauw.nl. Backbase employee; www.backbase.com.