SERVER-13177 mongooplog - Checking return value of connect. Proceed only if connected.

Closes #715

Signed-off-by: Benety Goh <benety@mongodb.com>
SERVER-13961 Thread through OperationContext to the AuthorizationManager
SERVER-14407 delete runner.h

Replaces Runner::RunnerState with PlanExecutor::ExecState.
Merge remote-tracking branch 'upstream/master'