Refactor Base.detect_installed_version
Update GitLab detector
Update Redmine detector
Update ownCloud 5 detector
Add Discourse detector
Update Discourse detector
Fix bug with empty captures
Up version to 2.8.1
Update gems
Update Collabtive detector
Update Roundcube detector
Up version to 2.9.0
Update Roundcube detector
Update Tine 2.0 detector
Update ownCloud detectors
Update gems
Up version to 2.10.0
Fix Vanilla Forums detector
Add RainLoop detector
Update gems