Python 2.7's Pool.get_socket doesn't accept 'pair' argument.
Compatibility with PyMongo 2.7's MongoClient's lazy connection and _event_class argument.
Whitespace.
MotorGridOut can open itself on demand.
MotorGridIn doesn't need an open() method.
Redundant doc section for MotorGridIn.set().
MotorGridFS doesn't need an open() method, either.
Obsolete sections in "Differences" doc.
Refactor GridFS tests.
Python 2.6 compatibility in TestReplicaSetClientAgainstStandalone.
Don't waste time in tests recreating the pymongo.MongoClient.
Don't waste time in tests rediscovering replica set.
Unnecessary test code.
Wait longer for dropped databases' names to disappear.
Don't waste time in tests making test data.
Useless code.
In PyMongo 2.7, Pool.get_socket() no longer takes a 'pair' param.
Style.
Bugfix copy_database().
Old comment.