Don't allow nontext UDF choice values, and change all existing ones to text
Fixes #950
Merge pull request #992 from maurizi/udfChoicesTextOnly

Don't allow nontext UDF choice values, and change all existing ones to text
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