'grunt devp' to watch preview components and rebuild on changes
add noflo/noflo-canvas to preview libs
Merge branch 'master' of github.com:noflo/noflo-ui
shadow css spec change
Merge branch 'master' of github.com:noflo/noflo-ui
Merge branch 'master' of github.com:noflo/noflo-ui
version bump and CHANGES.md