From: Eevee <ferrox@veekun.com>
Date: Fri, 19 Dec 2008 09:35:16 +0000 (-0800)
Subject: Removed distinction between Row/Box/Column.
X-Git-Url: http://git.veekun.com/pseudoku.git/commitdiff_plain/a49a2fc56c430884ad137031168836c9a3c6bfe9?hp=a49a2fc56c430884ad137031168836c9a3c6bfe9

Removed distinction between Row/Box/Column.

CellConstraints now remember which cells they actually own, rather than
generating a list on the fly.
Grids are largely apathetic towards which constraints they actually have once
they exist.
Also swapped out proxies for ref()s and gave CellConstraint some real
properties to get around the ugliness of that.
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