added get_unit and test
Adds a test to verify SimplexCoverage and ViewCoverage
Merge branch 'validate_unit' of https://github.com/mbarry02/coi-services into validate_unit

Conflicts:
	ion/processes/bootstrap/ion_loader.py
	ion/services/dm/utility/test/test_types.py
	ion/services/dm/utility/types.py
Warning message fix
merge upstream/master
aggregation status now handled using a "push" approach: all calculations and subsequent publication of derived events are triggered by events received from children agents.
Using new supporting class StatusUtil. Specific aparams handled are aparam_child_agg_status and aparam_aggstatus.  test_platform_status exercises this updates with various transitions.
merge upstream/master
some fixes
Bumped ion-definitions
Merge branch 'master' into ooiload

Conflicts:
	extern/ion-definitions
Merge bumped submodules
fixed test_int_data_process_management_service.py
rebased ion-def over master
Merge branch 'master' into build2_fix_extended_attributes
Merge pull request #908 from shenrie/master

Adding Org to set of Resource types to walk for policy
merge upstream/master
Change default process queueing mode to ALWAYS

Bump ion-defs and adds test
Merge pull request #910 from labisso/process_queueing_mode

Change default process queueing mode to ALWAYS
Revert "Bump ion-functions (Adds QC functions and scipy)"

This reverts commit f41b5605f08023cd927cda21456532a89c735251.
merged ion def local with master