Correct PATH expansion; add HOME
Correct PATH expansion; add HOME

AdmitHub/meteor-buildpack-horse,smartphoneorchestra/heroku-buildpack-meteor-ffmpeg-lame,RocketChat/heroku-buildpack-meteor,okgrow/meteor-buildpack-horse,domo-lab/meteor-buildpack-horse,tab00/prebuiltdeploy,forwarder/meteor-buildpack-horse,dalloro/meteor-buildpack-pony,hexsprite/meteor-buildpack-horse,jad11v/meteor-buildpack-horse,lirbank/meteor-buildpack-horse