Gordo

**Notable changes** :warning:
- Update tag-anomaly -> tag-anomaly-scaled references (808)
- Add cv fold timestamps and n points to metadata (785)
- Fix artifact logging with mlflow (798)

**Other changes and fixes** :wrench:
- Update CircleCI tests (801)
- Use project revision instead of version (804)
- Upgrade Python version to 3.7.5 (591)
- Add .python-version 3.7.0 for Dependabot (807)
- Add revision list view to server (805)
- Add metadata fixture (795)
- Endpoint to list models by revision (809)
- Use try block in reading metadata (823)
- Change GORDO_PROJECT_VERSION -> GORDO_PROJECT_REVISION (827)
- Replace CircleCI with Github Actions (821)
- Server: use revision to serve metadata/models (810)
- Client: use revision from server (816)
- Add dataclasses for machine.metadata (819)
- Replace tests/utils globals with fixtures (822)
- Include log_level as key in template (762)

**Dependency updates** :arrow_up:
- Bump dependency versions (825)
- Update dependencies (814)

Breaking change
* Make `Machine` a first class citizen (794)

A major refactoring and renaming have taken place. Essentially the concept of `Machine` is more prominent.
For the users, the main difference is the paths to models.

For example:
python
from gordo_components.model.models import KerasAutoEncoder

is now
python
from gordo_components.machine.model.models import KerasAutoEncoder

Breaking changes 🌵
* Remove watchman (766)
* Remove references to ambassador (787)
Other changes and fixes 💊
* Bump grafana influx 790
* Add non-root user to docker images 756
* Fix grafana dashboard loading (793)
* Optimize dockerfiles 792

Dependency updates 🍼
* Bump azureml-contrib-run from 1.0.76 to 1.0.79 778
* Bump dictdiffer from 0.8.0 to 0.8.1 788

- Breaking change: Add raw anomaly scores (759)
- Add MLflow logging to model builder (573)
- Add InsufficientDataError in dataset (772)
- Workflow: Add labels to various script steps (755)
- Watchman: Change some loglevels info->debug (760)
- Set workflow failFast=false (782)
- Cache metadata entries in the server (781)
- Bump scikit-learn requirement from 0.20 to 0.22

New release, hot off the press! :newspaper_roll:

**Minor**
* DiffBasedAnomalyDetector: total-anomaly-confidence calculation ( 738 )
* Remove per-machine server resources from examples ( 674 )
* Remove patch versions from in-files ( 743 )
* Change default log level to info ( 742 )
* Bump catboost from 0.19.1 to 0.20 ( 741 )
* Workflow: Remove gordo-mdl from the model-names ( 735 )
* Change client dependencies in argo template ( 734 )

**Patch**
* Change lambda and static method to factory for serialization (751 )

* Workflow: Delete old model objects 733