ai-flow-release-0.2.2 released

[SteNicholas]

The ai-flow-release-0.2.2 version of the AIFlow released.

Features

AIFlow

1. Add the documents of the AIFlow. [Doc] Add documentations #117

Airflow

1. Allow LocalExecutor to run with SQLite. [Airflow] Allow LocalExecutor run with SQLite #41
2. Airflow webserver supports the Airflow and Notification databases. [Airflow] Airflow webserver supports the Airflow and Notification databases #49

Notification Service

1. Introduces the countEvents interface. [Notification Service] Introduces the countEvents interface #11

Bug Fixes

1. Fix oss blob manager download concurrently. [AIFlow] Fix oss blob manager download concurrently #3
2. Deepcopy tasks in celery executor to avoid race condition. [Flink AI Flow] Deepcopy tasks in celery executor to avoid race condi… #12
3. Fix periodic workflow cannot run. [bugfix] Fix periodic workflow cannot run #77
4. Fix HDFSBlobManager failed to download existed file. [AI Flow] Fix HDFSBlobManager failed to download existed file #87
5. Removes the uncompleted api action_on_dataset_event. [AIFlow] Removes the uncompleted api action_on_dataset_event #104
6. The workflow directory is set incorrect in AIFlow runtime. At runtime the workflow directory is not set correctly. #111

Welcome to use this release version and give us the feedback of the AIFlow.