[alicebot-archcomm] Whitespace clarification

[Jonathan Roewen]

Can't we have rules like it currently is, but make them much clearer? Such
as:

- If xml:space='preserve' is applied to an element, standard whitespace
processing rules apply.
- Leading a trailing whitespace separating elements and character data
should be stripped.
- Whitespace separating sibling elements should be normalised to a single
space.
- Whitespace separating a child element from it's parent should be stripped.

And, is the <br/> tag still part of the standard? If not, why isn't it? I
think this should be the only way to add newlines, apart from using
xml:space='preserve' attribute, or CDATA sections (though not solely for
this purpose!).

Jon