DoSomething/dosomething — pull request #3129 by sergii-tkachenko (2014-10-03 19:15:08+00:00)
Title: UK SSO: Improve module installation.

#### What's this PR do?
- Presets `dosomething_user` variables on install
- Removes `dosomething_user` variables on uninstall

#### What are the relevant tickets?
- Part of UK SSO refactoring: [#DS-377](https://jira.dosomething.org/browse/DS-377)