2.0.43 09-14-2015
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* Propagate timeout event correctly to db instances.
* Application Monitoring API (APM) implemented.
* NOT providing replSet name in MongoClient connection URI will force single server connection. Fixes issue where it was impossible to directly connect to a replicaset member server.
* Updated mongodb-core to 1.2.12.
* NODE-541 Initial Support "read committed" isolation level where "committed" means confimed by the voting majority of a replica set.
* GridStore doesn't share readPreference setting from connection string. (Issue #1295, https://github.com/zhangyaoxing)
* fixed forceServerObjectId calls (Issue #1292, https://github.com/d-mon-)
* Pass promise library through to DB function (Issue #1294, https://github.com/RovingCodeMonkey)