Revert "Remove the clean command so the site doesn't go down during a build. Fixes lauriii/drupalcores#3"
Revert "Remove the clean command so the site doesn't go down during a build. Fixes lauriii/drupalcores#3"

jcnventura/drupalcores,jcnventura/drupalcores,nlisgo/drupalcores,skilld-labs/drupalcores,ChandeepKhosa/drupalcores,nlisgo/drupalcores,amolnw2778/drupalcores,nlisgo/drupalcores,skilld-labs/drupalcores,amolnw2778/drupalcores,skilld-labs/drupalcores,lauriii/drupalcores,ChandeepKhosa/drupalcores,nlisgo/drupalcores,amolnw2778/drupalcores,jcnventura/drupalcores,wimleers/drupalcores,lauriii/drupalcores,ChandeepKhosa/drupalcores,skilld-labs/drupalcores,jcnventura/drupalcores,lauriii/drupalcores,amolnw2778/drupalcores,ChandeepKhosa/drupalcores,lauriii/drupalcores,wimleers/drupalcores,wimleers/drupalcores,wimleers/drupalcores