- Implement some non-API methods from
  http://code.google.com/p/jira4r/source/browse/trunk/lib/jira4r/jira_tool.rb.

- Implement a CLI tool like
  http://confluence.atlassian.com/display/JIRAEXT/JIRA+Command+Line+Interface
  or http://confluence.atlassian.com/display/JIRAEXT/JIRA+CLI as a
  proof-of-concept usage example.
