Major error handling refactor plus extended DNS config
Added DNS config support
Modified OSE launcher to utilitze new DNS info
Merge pull request #159 from nhr/dns_and_error_refactor

DNS and error refactor
Minor updates for OSE
Merge pull request #160 from nhr/ose_updates

Minor updates for OSE
All host instances now store IPs; corrected OSE launcher errors
Merge pull request #162 from nhr/all_host_ips

All host instances now store IPs; corrected OSE launcher errors