Added new Javadoc tag, mongodb.server.release, for documenting which server release added the feature on which a class or method depends
Added mongodb.server.release Javadoc tags to driver-compat for 2.2, 2.4 and 2.6 features.
In Cluster interface: changed method name from getServer to selectServer in Cluster interface,  added maxWaitTime/timeUnit to selectServer and getDescription methods
Fixed @since tags in MongoClientOptions Javadoc
Made @return value consistent for all QueryBuilder methods.