Migrating to schemav3
Updated enrich_location module for schemav3.

-Updated prop to aggregatedCHO/spatial
-Updated unit tests to refelct updated prop
-Updated mdl-enrich-location module to set dictionary as a spatial
 array element
-Updated minnesota profile to run enrich_location module
Updated qa_reports for schemav3.
Merged lookup branch into master.
fixing artstor (source and preview location), WIP
fixing artstor (source and preview location unit tests), WIP
fixing artstor filter, WIP
Update README.md
Fixed scdl-usl profile format.
Added detailed error information in poll_profiles.
Merge branch 'master' of github.com:dpla/ingestion
Updated list_sets to handle various setDescription structures.

-Also updated Minnesota endpoint URI
KDL added

-Added kentucky profile
-Removed dpla-list-records requirement for set
-Added length check to content returned from ListSets. If lenght
 is less 2 or less, sets the profile name as the set name
-Added kentucky_identify_object module
-Removed error on empty "rights" from *_identify_object modules
-Added base class identify_object in akara configuration to hold
 status constants
filtering by path, WIP
filtering by path, WIP
filtering by path unit test
filtering by path endpoint
Merge branch 'master' into artstor
artstor profile updated
artstor profile fix (filter by path param)