A patch for page dereferencing

[art yerkes]

This patch makes ReferenceCount include MapCount so we don't get into the
quite common situation where the balance manager wants to expel a mapped
section.  I've been seeing this error running quite a number of things and
recently even in the first stage installer.

Lightly tested, probably wrong as usual.

http://www.superheterodyne.net/reactos/fix_page_reference.diff
-- 
Discordant is the murmur at such treading down of lovely things while
god's most lordly gift to man is decency of mind.  Call that man only
blest who has in sweet tranquility brought his life to close.
If only I could act as such, my hope is good.
-- Aeschylus' Agamemnon (translated by H. W. Smyth)