Don't allow nontext UDF choice values, and change all existing ones to text
Fixes #950
Rework API to hook into our existing views
Merge pull request #953 from ahinz/topic/api-upgrade

Rework API to hook into our existing views
Merge pull request #992 from maurizi/udfChoicesTextOnly

Don't allow nontext UDF choice values, and change all existing ones to text
Clean up imports
Add an endpoint for getting instance info for maps near a point
Merge pull request #996 from maurizi/topic/instanceListForPoint

Instance list for point
Include advanced search configuration in instance info API endpoint
Merge pull request #998 from maurizi/topic/advancedSearchApiInfo

Advanced search API info
Fix broken migration