MongoDB Ruby Driver v1.8.0

• New top level class Mongo::MongoClient acknowledges writes by default
• New top level class Mongo::ReplSetClient acknowledges writes by default
• New top level class Mongo::ShardedClient acknowledges writes by default
• MongoClient, MongoReplicaSetClient, MongoShardedClient and GridFS implement a new write concern interface at Client, DB, Collection, and Operation levels
• Deprecation of Mongo::Connection in favor of Mongo::MongoClient
• Deprecation of Mongo::ReplSetConnection in favor of Mongo::MongoReplicaSetClient
• Deprecation of Mongo::ShardedConnection in favor of Mongo::MongoShardedClient
• Allow specification of comment query opt (Evan Broder)
• Fix for pool authentication and logout (Olivier Bonnaure)
• Fix for cursor not being closed in presence of exceptions (Simon Simeonov)
• Fix for data send failure not closing socket (Nelson Elhage)
• Tutorials and non code documentation moved to GitHub wiki
• Provided binary mongo_client has been renamed to mongo_console