PYTHON-767 Support JSON strict mode $date output
PYTHON-1039 Support JSON strict mode $numberLong output
PYTHON-1103 Support JSON strict mode UUID output
PYTHON-1111 Support custom document class in loads
PYTHON-1111 Support tz_aware and tzinfo in loads
Refactor milliseconds to datetime conversions
Many of the pymongo modules have been moved into the bson
package. Aliases for those modules have been added to the pymongo
package, without deprecation warnings for now. Application developers
should begin to use the bson namespace, as deprecation of moved
modules will probably begin in the next release.