SERVER-16259 Rocks storage engine needs to support document locking

SERVER-16309 - Fix rocks_recovery_unit

SERVER-15744 Concurrency fix -- Fixed jstests/core/bench_test3.js

Signed-off-by: Matt Kangas <matt.kangas@mongodb.com>
SERVER-16279 change node B to arbiter in rollback_too_new
SERVER-16376 Make nodes in jstests/gle/get_last_error.js choose their sync source deterministically.

The test expects w:majority writes to happen faster than a heartbeat interval when a single
non-primary node fails.  If, however, that failed node is the intermediate in a replication
chain, there can be a multi-second lag until the other nodes recognize the failure.  Change
the test to disallow chaining, because it is not the subject of the test.
Add license header to new rocks files
SERVER-16247 Change oplog memory_page_max to 10MB
SERVER-16354 Delete the recovery unit in IndexCatalogEntry::setMultikey
SERVER-14062 exitCleanly should not create OperationContext
Import wiredtiger-wiredtiger-2.4.0-494-ge498f55.tar.gz from wiredtiger branch mongodb-2.8
SERVER-15908 SERVER-15956 fix explain shell helper handling of slaveOk and readPref
Revert "SERVER-14062 exitCleanly should not create OperationContext"

This reverts commit 15a2b7ca39ce472e43d8d37c6127eb4c3958456c.
Revert "SERVER-16002 SERVER-16369 Cluster / standalone auth tests."

This reverts commit 11b2d7b6051766674c2d66c86d9f23d0befdee09.
Revert "SERVER-16196 Enable execution of workloads against standalone mongod."

This reverts commit 113fb30b65cded6ece1160c962d64fa232440b7d.

Will re-enable the tests once memory overhead issues with the
mongo shell are resolved.
SERVER-16320 disable 2_test_launching_cluster.js until 2.6.6 is released
Revert "SERVER-16119: faster WT shutdown race avoidance"

This reverts commit fe363010e4b2b953c9876608861c02df4c8662ec, which stalls
WT parallel tests.
SERVER-16067: Partition intent locks in the lock manager
SERVER-16389 Clean up behavior of shutdown command waiting for replication
SERVER-15826 convertToCapped doesn't need to take a global lock
Import wiredtiger-wiredtiger-2.4.0-501-gcaa5e82.tar.gz from wiredtiger branch mongodb-2.8
Remove dead code from bgsync.
SERVER-16397 Throttle migration rate in mr_during_migrate.js