SERVER-12910 release conns back to pool after every mongos operation
SERVER-12969: db.eval should not support load()
remove case-check test for master/slave
SERVER-13016 Change rpm username from mongodb to mongod
SERVER-13016 Change dbpath from /var/lib/mongodb to /var/lib/mongo
SERVER-12820 Parse connection string to handle replica set connections in copydb command
SERVER-3071 penalize fetches during ranking
SERVER-12899 append "waited" field to all fsync GLE calls for 2.4 compatibility
SERVER-13007 added delimiters to plan cache key
Revert "SERVER-12820 Parse connection string to handle replica set connections in copydb command"

This reverts commit db6f4c6227581996ecba987be21912ed0824592c.
SERVER-12901 make maxSyncSourceLagSecs configurable
SERVER-12964 accept query shape object in plan cache shell helpers
SERVER-12964 updated plan cache and index filter commands to return empty results on non-existent collection or query shape
SERVER-12918 fixed skip() with equality queries on _id
SERVER-12939 prefer non-blocking sort plans when no plans produce or hit EOF
SERVER-13003 SERVER-13030 make upgradeChecker a function of DB and improve its messaging
SERVER-13048 progress printouts added to upgradeCheck()
SERVER-12539 Make mongorestore not interfere with ongoing user or role modifications

This is done by making mongorestore insert the users/roles from the dump files into temporary
collections that are later merged into the real admin.system.users and admin.system.roles
collections using a new command: _mergeAuthzCollections.
SERVER-12854 Prevent mongorestore from restoring user data to a 2.6 system with 2.4 schema users
fix single-db restores without the --restoreDbUsersAndRoles flag