Some small fixes to container hostname configurations, and some var cleanup to the shell command
Small documentation update for builds www-cnpm-jn Dockerfile
Small corrections to feature library debug statements, which were obviosuly imported from a hook
Added install flow warning, if the new bin script is not in PATH
Added initial exec command execution, still needs user control
Added more comments to the exec command after playing with it.
Renamed shell command to sandbox, and wrote new shell command based on exec.  Exec now has abstract functions for standard and sudo execs
Small fix to exec and shell command messages
new warning for running boch without a project folder.
Build->www-cnpm-jn change for new sandbox command