Add MessagePack field
Add msgpack requirement
Add data migration for the msgpack field
Change the JSONfields to MessagePackFields, move the regex method to base model
Support .year property queries
Update TODO list
Switch to PickledObjectField
Move and rename method
Fix per sub element sorting and grouping
Add new exceptions
Add smarter and consolidates value parsing when specifing geometry types
Add PickedObjectField migration
Add a new exception for field resultion errors
Make aggregates smarter as they can now operate on element properties
Improve the way aggregates are parsed, remove debug print statements