[jhc] darcs patch: make pretty printing of grin a bit prettier (and 5 more)

Thu Aug 27 02:34:58 PDT 2009 John Meacham * make pretty printing of grin a bit prettier Thu Aug 27 03:42:54 PDT 2009 John Meacham * minor library optimization to Numeric.roundTo Fri Aug 28 00:42:37 PDT 2009 John Meacham * some clean ups Fri Aug 28 05:26:04 PDT 2009 John Meacham * fix export-import test on 64 bit systems Fri Aug 28 07:29:17 PDT 2009 John Meacham * make some minor changes to typechecking code based on profiler output Sat Aug 29 16:04:29 PDT 2009 John Meacham * fix bug in UnionSolve that flipped meet and join for the toppable type