SERVER-7596 SCRAM-SHA-1 updateUser command support
SERVER-14240 Pass data from ReplicationExecutor to callbacks in a struct.

This facilitates adding or changing the parameters provided to callbacks.

Also, supply the CallbackHandle for the running callback in the passed data.
SERVER-13648 better stats from migration cleanup

Log waiting cursor ids and add serverStatus section
SERVER-14211 Remove dead Trace class
SERVER-14211 Remove dead Histogram and ServiceStats classes
SERVER-14211 Remove dead LRUishMap class
SERVER-14244 Additional testing for updating with $ field names

Signed-off-by: Benety Goh <benety@mongodb.com>
SERVER-14282 Fix random crash with recSizeKB > 4

Signed-off-by: Benety Goh <benety@mongodb.com>
SERVER-13961 Get rid of some usages of dbexit from deep in sharding code

This change prepares for removing dbexit altogether.