Issue: IWSoftware/ensureconnect-playbook#1

Update to webmin-role.
* Cleaned up README.md
* Improved spacing in installations/base.yml.
* Added cleanup command to installations/base.yml.
* Updated asterisk installation to include Master.csv log file.
 * This is now being written to its own file.
* Removed restart of Webmin from lumenvox configuration.
* Updated lumenvox configuration to write configuration to its own file.