Project: datamanagement
Issue DM-2158: Add support for JSON - define structure
As discussed at [Data Access Hangout 2015-02-23|https://confluence.lsstcorp.org/display/DM/Data+Access+Hangout+2015-02-23], we should support json format. This includes defining the exact format, and implementing it. This story covers defining the format.
Story points: 2