Added check to see if D3 library is installed in hook_formatter_view before showing the field.
Removed D3 contrib module as dependency.
Updated hook_field_info. Removed virtual_field element - Use hook_ding_entity_fields() instead.
Removed entity_types because they were causing problems with hook_ding_entity_fields() on install.
Renamed field from field_ting_visual_relation to just ting_visual_relation.
Use hook_ding_entity_fields() instead of virtual_field add_widget element in hook_field_info().
Renamed field from field_ting_visual_relation to ting_visual_relations to make the name more consistent with existing fields in ting_object.
Updated hook_process_ting_object. Rename field from tield_ting_visual_relations to ting_visual_relations.
Updated comment above hook_process_ting_object().