add simple_dataset_agent with simpler state model and control flow
Merge branch 'master' of github.com:ooici/coi-services into preload_external_data
Merge pull request #1023 from shenrie/master

Enabling validation interceptor for inbound only
Updated README_DEMO
Bump pyon to fix object validation in simple agent pubs.
Skip autoreconnect until buildbot fixed.
Fix autoreconnect test logic.
Unskip agent config persistence test.
finish pluggable external dataset agent
bump pyon version (incl utilities)
bump google doc url
remove obsolete test
fix aparam_alerts, alerts list structure and  custom_attributes
Merge branch 'master' of github.com:ooici/coi-services into preload_external_data
Merge pull request #1024 from newbrough/preload_external_data

Preload external data
Fix gevent coverage versions
set attributes such as firmware vallue and calibration datatime to NotAvailable in custom attributes
remove firmware_version and calibrations_datetime from InstrumentDeviceExtended
Fix OOI preload for data products
Merge branch 'master' of github.com:ooici/coi-services

Conflicts:
	extern/ion-definitions