add some docblocks (refs #83)
add some docblocks (refs #83)

webdevid/scssphp,dleffler/scssphp,webdevid/scssphp,webdevid/scssphp,dleffler/scssphp,leafo/scssphp,leafo/scssphp,g105b/scssphp,leafo/scssphp,g105b/scssphp,dleffler/scssphp,g105b/scssphp,kkkyyy03/scssphp