[ANN] MongoDB 2.2RC1 and driver 1.1.4 is out and marked stable

[christkv]

Release 1.1.X features compatibility for MongoDB 2.2 as well as a slew of bug fixes and improvements.

- Added Mongos connection type with a fallback list for mongos proxies, supports ha (on by default) and will attempt to reconnect to failed proxies.

- Documents can now have a toBSON method that lets the user control the serialization behavior for documents being saved.

- Gridstore instance object now works as a readstream or writestream (thanks to code from Aaron heckmann (https://github.com/aheckmann/gridfs-stream)).

- Fix gridfs readstream (Issue #607, https://github.com/tedeh).

- Added disableDriverBSONSizeCheck property to Server.js for people who wish to push the inserts to the limit (Issue #609).

- Fixed bug where collection.group keyf given as Code is processed as a regular object (Issue #608, https://github.com/rrusso2007).

- Case mismatch between driver's ObjectID and mongo's ObjectId, allow both (Issue #618).

- Cleanup map reduce (Issue #614, https://github.com/aheckmann).

- Add proper error handling to gridfs (Issue #615, https://github.com/aheckmann).

- Ensure cursor is using same connection for all operations to avoid potential jump of servers when using replicasets.

- Date identification handled correctly in bson js parser when running in vm context.

- Documentation updates

- GridStore filename not set on read (Issue #621)

- Optimizations on the C++ bson parser to fix a potential memory leak and avoid non-needed calls

- Added support for awaitdata for tailable cursors (Issue #624)

- Implementing read preference setting at collection and cursor level

   * collection.find().setReadPreference(Server.SECONDARY_PREFERRED)

   * db.collection("some", {readPreference:Server.SECONDARY})

- Replicaset now returns when the master is discovered on db.open and lets the rest of the connections happen asynchronous.

  - ReplSet/ReplSetServers emits "fullsetup" when all servers have been connected to

- Prevent callback from executing more than once in getMore function (Issue #631, https://github.com/shankar0306)

- Corrupt bson messages now errors out to all callbacks and closes up connections correctly, Issue #634

- Replica set member status update when primary changes bug (Issue #635,https://github.com/alinsilvian)

- Fixed auth to work better when multiple connections are involved.

- Default connection pool size increased to 5 connections.

- Fixes for the ReadStream class to work properly with 0.8 of Node.js

- Added explain function support to aggregation helper

- Added socketTimeoutMS and connectTimeoutMS to socket options for repl_set.js and server.js

- Fixed addUser to correctly handle changes in 2.2 for getLastError authentication required

- Added index to gridstore chunks on file_id (Issue #649,https://github.com/jacobbubu)

- Fixed Always emit db events (Issue #657)

- Close event not correctly resets DB openCalled variable to allow reconnect

- Added open event on connection established for replicaset, mongos and server

- Much faster BSON C++ parser thanks to Lucasfilm Singapore.

- Refactoring of replicaset connection logic to simplify the code.

- Add `options.connectArbiter` to decide connect arbiters or not (Issue #675)

- Minor optimization for findAndModify when not using j,w or fsync for safe