Prefer single quotes.
This shouldn't be a symbol.
 Exclude EPEL bugs. Fix #42.
Add changelog
Ignore .swo files.
Remove failing migration.
Refactor rake tasks. Fix #13.

- Namespace refactored.
- Add helper task.
- Rake tasks are more modular.
Fix typo.
Merge pull request #45 from axilleas/refactor_rake_tasks

Refactor rake tasks
Remove unused files, add capybara draft test.
Add test for source uri.
Add integration test for fedorarpms index and show page.