add license and fix #32.
add license and fix #32.

PikachuEXE/rspec-cells,apotonick/rspec-cells,CJBrew/rspec-cells,timoschilling/rspec-cells,CJBrew/rspec-cells,PikachuEXE/rspec-cells,apotonick/rspec-cells,timoschilling/rspec-cells