change home path to $DOKKU_ROOT
change pws to pass
Remove cat at end of file

refs: https://github.com/progrium/dokku/commit/455be29249664101262a788a8c8a945d65c7339a
Fixed volume path

Volume path has been changed since Docker 0.6.7
Merge branch 'pr/4'

* pr/4:
  Remove cat at end of file
Merge branch 'pr/5'

* pr/5:
  Fixed volume path

Conflicts:
	commands