=========
Features:
----------
* Add support for `role_arn` in athenaclirc file to allow connection to assume aws role. (Thanks: pdpark)
* Allow using an empty `--athenaclirc=` to not generate the default config file on first start (Thanks: jankatins)
* Allow starting with `--profile=<aws_profile_name>` without having a corresponding entry in the `athenaclirc` config
file (Thanks: jankatins)
* Add support for supplying the SQL query on stdin by using `-` (minus) as query string: `--execute=-`.
(Thanks: jankatins)