merge HostWithPrivateDirs into Host
unmount private directories after use
ensure we retrieve a single PID when run on a cluster node
fix silent failures when rt cannot be assigned
Merge pull request #429 from cdburkard/patches/cluster_m

ensure we retrieve a single PID when run on a cluster node
Merge pull request #424 from cdburkard/devel/mergePrivate

merge HostWithPrivateDirs into Node
Update module comment.
Merge pull request #419 from cdburkard/patches/rt_failure_output

fix silent failures when rt cannot be assigned - will follow up on this
Move RT check into its own method, and save value.
Reorganize CFS and RT default/error conditions.
standardize on localhost for local server's name