New features, better docs, dropped python 3.5

PyTorch-Ignite 0.4.3 - Release Notes

🎉 Since september we have a new logo (#1324) 🎉

Core

Metrics

• [BC-breaking] Made Metrics accumulate values on device specified by user (#1238)
• Fixes BC if custom metric returns a dict (#1478)
• Added PSNR metric (#1570, #1595)

Handlers

• Checkpoint can save model with same filename (#1423)
• Add greater_or_equal option to Checkpoint handler (#1597)
• Update handlers to use setup_logger (#1617)
• Added TimeLimit handler (#1611)

Distributed helper module

• Distributed cpu tests on windows (#1429)
• Added kwargs to idist.auto_model (#1552)
• Improved horovod initializer (#1559)

Others

• Dropped python 3.5 support (#1500)
• Added torch.cuda.manual_seed_all to ignite.utils.manual_seed (#1444)
• Fixed to_onehot function to be torch scriptable (#1592)
• Introduced standard stream for logger setup helper (#1601)

Docker images

• Removed Entrypoint from Dockerfile and images (#1475)

Examples

• Added [Cifar10 QAT example](https://github.com/pytorch/ignite/tree/master/examples/contrib/cifar10_qat (#1556)

Contrib

Metrics

• Improved Canberra metric for DDP (#1314)
• Improve ManhattanDistance metric for DDP (#1320)
• Improve R2Score metric for DDP (#1318)

Handlers

• Added new time profiler HandlersTimeProfiler which allows per handler time profiling (#1398, #1474)
• Fixed attach_opt_params_handler to return RemovableEventHandle (#1502)
• Renamed TrainsLogger to ClearMLLogger keeping BC (#1557, #1560)

Documentation improvements

• #1330, #1337, #1338, #1353, #1360, #1374, #1373, #1394, #1393, #1401, #1435, #1460, #1461, #1465, #1536, #1542 ...
• Update Shpinx to v3.2.1. (#1356, #1372)

Codebase is MyPy checked

• #1349, #1351, #1352, #1355, #1362, #1363, #1370, #1379, #1418, #1419, #1416, #1447, #1484

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Acknowledgments

🎉 Thanks to our community and all our contributors for the issues, PRs and 🌟 ⭐️ 🌟 !
💯 We really appreciate your implication into the project (in alphabetical order):

@1nF0rmed, @Amab, @BanzaiTokyo, @Devanshu24, @Nic-Ma, @RaviTezu, @SamuelMarks, @abdulelahsm, @afzal442, @ahmedo42, @dgarth, @fco-dv, @gruebel, @harsh8398, @ibotdotout, @isabela-pf, @jkhenning, @josselineperdomo, @jrieke, @n2cholas, @ramesht007, @rzats, @sdesrozis, @shngt, @sroy8091, @theodumont, @thescripted, @timgates42, @trsvchn, @uribgp, @vcarpani, @vfdev-5, @ydcjeff, @zhxxn