Make JsonField actually do it's work
Make JsonField actually do it's work

This code will be used when objects are registered.

Change-Id: I2f1b3e2dd5584335e318b936984c227050bbe699
Partial-Bug: 1491258

openstack/heat,cwolferh/heat-scratch,dims/heat,steveb/heat,steveb/heat,jasondunsmore/heat,dims/heat,openstack/heat,noironetworks/heat,jasondunsmore/heat,cwolferh/heat-scratch,noironetworks/heat