darcs patch: eliminate a few Eq a constraints in Stac... (and 2 more)

20 Sep 2007

      Here's a patch to start moving Layout into the StackSet.

David

Thu Sep 20 17:01:43 EDT 2007  David Roundy 
  * eliminate a few Eq a constraints in StackSet.

Thu Sep 20 17:05:27 EDT 2007  David Roundy 
  * remove unneeded Ord constraint.

Thu Sep 20 17:28:43 EDT 2007  David Roundy 
  * add (unused) Layout to StackSet.

David Roundy