Improved build mode

[simgrapes]

If you look at the scans on http://www.snootysims.com/thesims3index.php?id=thesims3 you'll notice that in the picture of the interior of sim homes their are pieces of furniture oriented at all sorts of angles not possible in the old grid system of the sims 2. This has really got me excited, because sometimes the grid system made building homes with restraints that really held back my vision.