Add node 0.6 to travis build config.
Add node 0.6 to travis build config.

hayesgm/brunch,ondreian/brunch,kidaa/brunch,rlugojr/brunch,hellyeahllc/brunch,brunch/brunch,PeterDaveHello/brunch,lalomartins/brunch,Flaise/brunch,justinwoo/brunch