Pyathenajdbc

* Update JDBC driver to 2.0.9
* Pinned the JPype version to 0.7.1 or less.
https://github.com/jpype-project/jpype/commit/f4f9321d691176067ac404a6412676ea8b9da7c9diff-2eeaed663bd0d25b7e608891384b7298

* Support SQLAlchemy 1.3.0.
* Support JPype 0.7.0.
Thanks Thrameos. (laughingman7743/PyAthenaJDBC/pull/85)
* Exclude tests from dist package.
Thanks gaqzi. (laughingman7743/PyAthena/pull/86)

* Restrict the allowable version of SQLAlchemy(>=1.0.0, <1.3.0).
* Support Python 3.7
* Update JDBC driver to 2.0.7

* Update JDBC driver to 2.0.6

* Fix AttributeError: 'Engine' object has no attribute 'connection'.
Thanks mrshu. (laughingman7743/PyAthena/issues/63)
* Optimize get_columns method in SQLAlchemy.
Thanks mrshu. (laughingman7743/PyAthenaJDBC/issues/75)

* Fix to make it None when SQLAlchemy's URI username and password are empty strings.
If you do not specify `aws_access_key_id` and `aws_secret_access_key` in SQLAlchemy using the instance profile or boto3 configuration file, the connection string is as follows:

awsathena+jdbc://:athena.{region_name}.amazonaws.com:443/{schema_name}?s3_staging_dir={s3_staging_dir}&...

Thanks leahein. (laughingman7743/PyAthena/issues/54)
* Fix double escaping of percent character in SQLAlchemy.
Thanks mister-average. (laughingman7743/PyAthena/issues/56)