SERVER-15978 RocksCursor doesn't need to locate to the beginning when created

Signed-off-by: Ramon Fernandez <ramon.fernandez@mongodb.com>
SERVER-15976 update THIRD-PARTY-NOTICES for WiredTiger 3rd party software
SERVER-15541 MultiPlanStage checks for yield between every call to work during plan ranking
SERVER-15262 On long lock acquisitions, dump the call stack as well

Also checks for local deadlock without failing and reduces the output to
only locks which have requests on them.
Merge remote-tracking branch 'upstream/master'