Clean up comments and documentation in tools/rietveld.
Clean up comments and documentation in tools/rietveld.

google/personfinder,gauribhoite/personfinder,AwesomeTurtle/personfinder,gauribhoite/personfinder,gauribhoite/personfinder,gimite/personfinder,ominux/personfinder,google/personfinder,namanjain236/personfinder,gauribhoite/personfinder,groschovskiy/personfinder,lucasmoura/personfinder,kspviswa/personfinder,g19-hs/personfinder,g19-hs/personfinder,namanjain236/personfinder,kspviswa/personfinder,lucasmoura/personfinder,clobrano/personfinder,gimite/personfinder,google/personfinder,clobrano/personfinder,gimite/personfinder,AwesomeTurtle/personfinder,groschovskiy/personfinder,gauribhoite/personfinder,clobrano/personfinder,ominux/personfinder,google/personfinder,AwesomeTurtle/personfinder,gimite/personfinder,gauribhoite/personfinder