Minibatch

*changes*

1d9ceb0 update dependendices to match omegaml>0.14 (31)
7d36634 Create LICENSE-NOSELLCLAUSE (29)

* Revert "Release 0.5.1" by miraculixx in https://github.com/omegaml/minibatch/pull/39
* prep release 0.5.1 by miraculixx in https://github.com/omegaml/minibatch/pull/43
* prep release 0.15.1 by miraculixx in https://github.com/omegaml/minibatch/pull/44


**Full Changelog**: https://github.com/omegaml/minibatch/compare/0.5.0...0.5.1

New Contributors
* omegaml made their first contribution in https://github.com/omegaml/minibatch/pull/33

**Full Changelog**: https://github.com/omegaml/minibatch/compare/0.4.1...0.5.0

* CeleryEventSource enables easy streaming of celery events to simplify task tracking and complex follow up actions

changes

0211439 always use datetime.utcnow instead of datetime.now, ensure windows across timezones
c4ce7d8 enable celery events as a minibatch source

improves throughput and simplifies integration with omega|ml

* enable batched writing (local buffering before write)
* new source DatasetSource
* new target DatasetSink

changes

e8be3d5 enable batched and nonwaiting appends, improving performance 3000x
6f63789 enable batched and nonwaiting appends, improving performance 3000x
4cfcabe update readme, add contributing guidelines
639ebae update readme