SERVER-14471 Fix build break with the Visual Studio 2013 Update 2 toolkit
SERVER-14471 Fixing lint error because of whitespace
SERVER-14436 Remove dead ReplSetConfig::HealthOptions type.

It has no consumers.  The one instance is never changed or consulted.
SERVER-14460 Comment out implementation of checkReplicaMemberVersions for now
SERVER-14436 Introduce bsonCheckOnlyHasFields helpers.

These helpers paired with the bsonExtract helpers faciliate the manual parsing
of structures out of BSONObj.
SERVER-14299 prevent mongos from requesting unnecessary batches for sort + limit queries
SERVER-14460 Fix lint