Depend on jira instead of jira-python; fixes #52.
Depend on jira instead of jira-python; fixes #52.

databricks/spark-pr-dashboard,mxm/spark-pr-dashboard,databricks/spark-pr-dashboard,mengxr/spark-pr-dashboard,d3borah/spark-pr-dashboard,d3borah/spark-pr-dashboard,mengxr/spark-pr-dashboard,databricks/spark-pr-dashboard,mengxr/spark-pr-dashboard,mxm/spark-pr-dashboard,mxm/spark-pr-dashboard,d3borah/spark-pr-dashboard