fix class/className concat bug when they're defined in both selector and attrs
test class name fix
allow mixing keys with non-keyed elements
version bump
clean up
fix diff when changing from element to empty array
fix double redraw when events fire simultaneously
fix node insertion bug when using document as root
document previous fix in change log
normalize arrays
fix key ordering in interpolation case
update change log
refactor array flattening into diff engine
prevent setting NodeList length
refactor redraw
fix docs
publish 0.1.19