SERVER-11360 Splits can fail if the split point was once a chunk boundary

Always refresh first before performing any chunk metadata changing operation on mongos.
SERVER-10636 Verify that GeoJSON points are prohibited with 2d index and $near

Signed-off-by: Matt Kangas <matt.kangas@mongodb.com>
SERVER-11496 SERVER-2212 Fix race condition in max_time_ms_sharded.js

Wait for inserts to complete before expecting count to include them.
SERVER-11504 hooked up auditLogging of dropAllRolesFromDatabase