SERVER-11795 WriteResult#getBatchError returns nothing if ok is NumberLong(0)
SERVER-11759 errmsg is empty on sharding create index error
SERVER-11679 add some missing 'golden query' tests

Signed-off-by: Matt Kangas <matt.kangas@mongodb.com>
SERVER-11617 fixed index bounds for numerical types to support infinity
SERVER-11611: remove dependency on DataFileMgr.

Signed-off-by: Matt Kangas <matt.kangas@mongodb.com>