some fixes from Mikelis, plus made shells default to temporary (override with --persistent)
Made the dev start.sh executable
First fix on start.sh and attempt to better debug the docker_run callback hook
small refactor to docker_run to not fork docker_run for shell commands
Fixd start and shell script (needs testing on OSX), updated README
Removed the last of the traces of the cpnm boxes (should have been cnpm)
Added "existing" context selector to decide if the "start" command should start a stopped container or run a new container
some comment cleanup, and added ability to override container name in "shell" command
fixed regression - lost some supervisor config stuff in the parent box
Merge branch 'DEV'

Conflicts:
	README.md