preload external dataset, model, agent
Merge branch 'master' of github.com:ooici/coi-services into preload_external_data
Merge branch 'master' of github.com:ooici/coi-services into preload_external_data
more changes for external dataset preload
improve log statements
Merge branch 'master' of github.com:ooici/coi-services into preload_external_data
test dataset agent config dicts, bump tested doc URL
Merge branch 'master' of github.com:ooici/coi-services into preload_external_data
Merge pull request #926 from newbrough/preload_external_data

Preload external data