Fix for #83266316. Made a single stylemap and inverted it for hackstyle. Also added support for camelcased or - character based css names in hackstyle.
Merge pull request #63 from teem2/stylemap

Fix for #83266316. Made a single stylemap and inverted it for hackstyle....
Minor optimization to % constraints for x,y,width,height.
constraint unbinding

Unbind constraints when a node is destroyed or a constraint is bound
again with setConstraint()
More comments, testing
calling setAttribute() automatically unregisters constraints