Mtools

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* mtools should use python3 in shebangs (761)
* mloginfo: add timezone to mloginfo summary (258)
* mloginfo --clients: more robust parsing of client metadata (765)
* mloginfo --queries: fix missing patterns for remove command (742)
* mloginfo --queries: add rounding option (698)
* mplotqueries: fix error parsing checkpoint log line (757)

Thanks to stennie, kallimachos, kevinadi, niccottrell, and p-mongo
for contributions to this release.

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Now supporting Python 3.6+ (only)

* Add support for Python 3.7 and 3.8
* Remove support for Python 2.7
* Update requirements to modern package versions
* Require minimum dependency versions rather than exact
* mlaunch: mlaunch with no options should show --help (749)
* mlaunch: Fix --storageEngine confusingly reported as ignored in sharded
deployments (730)
* mlaunch: Fix unquoted --wiredTigerEngineConfigString parameter (683)
* mloginfo: mloginfo with no options should show usage info (751)
* mloginfo: Fix for --queries gives AttributeError if there is a field called
"query" in the log (741)
* mloginfo: Fix --queries gives `TypeError` for some logs (697)
* mloginfo: Add --checkpoints to show slow WiredTiger checkpoints if
available (707)
* mloginfo: Improve --queries to show allowDiskUse for aggregations if
available (708)
* mloginfo: Add --clients to show client summary info (540)
* mloginfo: Add --cursors to show cursor information if available (710)
* mloginfo: Add --storagestats to display storage statistics (711)
* mloginfo: Add --transactions to display slow transactions if available (704)
* mloginfo: Include queries without durations in the query count (680)
* mplotqueries: Fix --group-limit throws error in Python 3.x (688)
* mplotqueries: Add --dns to display slow DNS Resolutions if available (706)
* mplotqueries: Add --oplog to display slow oplog entries if available (705)
* Update mention of oldest non-EOL MongoDB server version (3.6 as of Jan 2020)
* util/logfile.py: Reading log from stdin hits error on str.decode() in
Python 3 (658)

Thanks to stennie, kallimachos, kevinadi, savinay-vijay, mitesh-gosavi,
HenryGP, sindbach, garycahill, karlvr, and josemonteiro
for contributions to this release.

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* mlaunch: Quote mongos --logpath (to handle paths with spaces)
* mlaunch: Permit command line options with "="
* mlaunch: Ignore passing unsupported param --wiredTigerCacheSizeGB to mongos
* mlaunch: Add --wiredTigerEngineConfigString as an undocumented mongod param
* util/logevent.py: Add LogEvent support for returning actual query (not pattern)

Thanks to ajdavis, renatoriccio, twblamer, kevinadi, sindbach,
kallimachos, and stennie for contributions to this release.

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* mlaunch: Set appname for MongoDB 3.4+ client metadata
* mlaunch: Only use roles variable instead of args once set up
* mlaunch: Fix for --sharded and --auth-role-docs failing to add roles
* mlaunch: Fix failure to connect to standalone SSL mongod
* mlaunch: Retain PyMongo import error exceptions
* mlogfilter: Fix Unicode error for redirected output
* Improve flake8 style compliance

Thanks to kevinadi, p-mongo, gmishkin, and stennie for contributions
to this release.

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* mlaunch: Fix 1.5.0 regression preventing use of --auth
* mloginfo: Add support for MongoDB 3.2+ --rsinfo
* mlogfilter: Fix intermittent test failures

Thanks to kevinadi, kallimachos, sindbach, and stennie
for contributions to this release.

~~~~~~~~~~~~~
* Update matplotlib to 1.4.3
* Update numpy to 1.14.5
* Update python-dateutil to 2.7
* Update pymongo to 3.6.1
* Pin requirements to avoid pulling in breaking changes
* Ignore "new oplog query" log entries for query duration parsing
* Replace characters that can't be UTF decoded with '?'
* Fix logic error preventing parsing of empty or unexpected log lines
* mplotqueries: Report actual error when `matplotlib` import fails
* mlaunch: If `mongod` is missing, print the path that was used
* mlaunch: Add support for GSSAPI
* mlaunch: Add users to all shards in sharded cluster
* mlogvis: Remove write lock and read lock grouping

Thanks to kevinadi, jamesbroadhead, mathom, kallimachos,
sindbach, and stennie for contributions to this release!