qt-doc.noarch

[Rex Dieter]

Right now, the qt-doc pkg is pretty big, on my box ~95mb rpm and ~166mb 
installed, and a lot of that is noarch (html docs), but it currently 
also includes arch'd demos/examples.

I'd like to split out the arch'd content, so we can make qt-doc noarch. 
  But how best to do that?  Simply make
qt-demos
qt-examples
subpkgs?  Any other suggestions?

(Before doing anything, we'd double-check anything that currently
Requires or BuildRequires qt-doc to avoid any breakage).

-- Rex