Numerous bug fixes and improvements

Greatly improved stability and robustness
Expanded documentation
Greatly improved logging for easier debugging
Improved terminal output
Add 1-node instant cluster option to lpjs ad-hoc
Disambiguate UI
Save/restore node states across daemon restart
Improve munge key distribution
Add built-in support for file transfer for nodes with no NFS
Enforce real memory limits
Improve service scripts
Standardize format of log messages
Record basic job history, add lpjs history command to view
Require same version of dispatchd and compd for checkin
Add lpjs peak-mem command to show RSS for completed jobs
Add #lpjs path to set path prior to file transfer