[ODE] XODE - finalisation

[William Denniss]

Version 13 is online: http://tankammo.com/xode/xode.txt

Changes:

* <mass> element clarified and corrected
* 'name' attribute of <ext> renamed to 'ename' to avoid ambiguities with
'name' meaning something different with the <ext> element than with all
other elements. 
* indexed triangle array changed to use <triangles> tag

I didn't reply to everyone who made suggestions in the "XODE -
finalisation" thread but I have taken on board most of them.  Please
review what I have done and repost your suggestions if I missed them.

If there are any further changes to make then the sooner the better - I
am really wanting to freeze the schema so we can start to use it.  
Mistakes to the example, and clarifications to the text can of course be
made any time but mistakes and omissions to the schema will need to be
corrected soon.

Cheers,

Will.	

-- 
William Denniss - will@ http://tanksoftware.com/