Change Log v1.6.1-Driver.txt

C# driver changes from 1.6 to 1.6.1

MongoCollection.cs
    Commands are now sent using the collection's settings (not the database's)

MongoConnectionStringBuilder.cs
MongoDefaults.cs
MongoServerSettings.cs
MongoUrl.cs
MongoUrlBuilder.cs
    Made secondaryAcceptableLatency configurable

MongoCursorEnumerator.cs
    Added white list of commands that can be sent to secondaries (all others are sent to the primary)
    ReadPreferences of Primary and SecondaryPreferred (without tags) are now encoded on the wire using only the slaveOk bit
        all other ReadPreferences are encoded using $readPreference
    Fixed wrapping of queries so $query always goes first and not $readPreference

MongoDatabase.cs
    RunCommandAs now delegates to new RunCommandAs method in MongoCollection

ReadPreference.cs
    Removed ChooseServerInstance and moved logic to MongoServerProxies

ConnectedInstanceCollection.cs
    Removed ChooseServerInstance and moved logic to MongoServerProxies
    Added GetAllInstances
    Added GetPrimary
    Added GetPrimaryAndSecondaries
    Added GetSecondaries

ReplicaSetMongoServerProxy.cs
ShardedMongoServerProxy.cs
    Implemented proxy specific implementations of ChooseServerInstance

BsonSerializationInfoHelper.cs
    GetSerializationInfo now partially evaluates the node to support more LINQ queries correctly