speed improvement

painter holds now background image; renderer draws directly into it
fix halfpipe movement
fix initial brush positions
translate2d with mouseevents and css
prototype rotating:
all transformations working, even though quite hacky
abstracted scaling into one function, control handles now don't skew
Although quite hacky, most transformation interactions are working now
include widget test in index.html
rewriting transformation component as xtag and proper with Mat3, proper man
removed ugly num hack
fix scaleMatrix
fix num hack
motherfucking vectors motherfucker
transfomration xtag complete
just some cleaning up
transformation xtag updated
fucking merge