SERVER-14361 fix not master problem in initial_sync3.js
SERVER-14341 OpCounters missing calls to _checkWrap() added back
SERVER-13961 Add capability to register and discover OperationContexts

This replaces the need to iterate through the list of registered Clients
for diagnostics/reporting purposes. Also moves some of the per-client
information to be under OperationContext.

This is in preparation for removing LockState from TLS.
SERVER-13961 Remove TLS LockState accesses from repl
SERVER-5092 support log tags for LOG() messages
SERVER-5092 added server parameters for tag log levels
SERVER-5092 tagged storage and networking LOG() messages
SERVER-14097 SERVER-14098 execution-level explain for .find() and .count()

The explain implementation for .find() and .count() is feature complete. To use
the .find() implementation, set the enableNewExplain setParameter to true.

Count operations are explained through the new explain command, e.g.
db.runCommand({explain: {count: "coll", query: {foo: "bar"}}}).
Revert "SERVER-13961 Remove TLS LockState accesses from repl"

This reverts commit e1dca2cdeed7cf5549a85d487def752d600af244.
SERVER-13635 keep mmapv1-specific record.h within mmapv1 impl
SERVER-13635 extents are mmapv1 specific, move into mmapv1
SERVER-14376 Get rid of mongoutils/hash.h.

Move the only function used by the only consumer into the consumer itself.
SERVER-14376 Get rid of mongoutils/README and test.cpp.

The README is no longer true, and the test is neither compiled nor run.
SERVER-14376 Remove mongoutils::checksum, which was only called in one test.
SERVER-14376 Make mongoutils::str available in the mongo namespace.
SERVER-14376 Move mongoutils::html namespace into mongo::html namespace.
SERVER-14366 disallow $natural sort or hint with geoNear
SERVER-13635 change lib deps
SERVER-14374 Include server_options.h as needed and apply the std:: namespace when missing.

Previously, the affected files compiled because of indirect includes from hostandport.h
SERVER-14374 Include mongo/util/mongoutils/str.h as needed.

Previously, the affected files compiled because of indirect includes from hostandport.h