Next round of project restructure
- source maps tested, work in chrome
- added ascDataSet to data.coffee extra
- slight restructure to 32bit patch pixel drawing
- agentsets/model: asSet methods now take setType
- world: added min/max X/Y cor: +/- .5 for agent coords
-   width/height -> pxWidth/pxHeight
- patches.pixelXYtoPatchXY .. used by mouse.coffee
- removed test canvas from all models, no longer relevant.
- util: rgb <> hsb conversion utilities