display usage by default + some fixes. patch from @backerman on github
display usage by default + some fixes. patch from @backerman on github

couchapp/couchapp,dustin/couchapp,flimzy/couchapp,diderson/couchapp,couchapp/couchapp,flimzy/couchapp,h4ki/couchapp,diderson/couchapp,h4ki/couchapp,h4ki/couchapp,couchapp/couchapp,diderson/couchapp,dustin/couchapp,h4ki/couchapp,benoitc/erica,flimzy/couchapp,dustin/couchapp,couchapp/couchapp,flimzy/couchapp,diderson/couchapp,benoitc/erica