SERVER-13379 jstests that start servers can't live in core
SERVER-13336 IndexUpdateTests: Only try to kill index builds

Now that counts can yield, they can be killed. The killAll() calls above were
not intended to effect the counts.
Increase oplog size for test
SERVER-13406 add debugging for OR sub-planner
SERVER-13406 don't extract invalid index assignments from OR subplan when it indexed sorts
SERVER-13374 change connection pool defaults