Update messages_es.properties to fit commit 21f5dbaba2
Merge pull request #210 from AlfredoRamos/patch-3

Update messages_es.properties to fit commit 21f5dbaba2
Bumped version to 3.3.1
Clicking "Check for updates" when there are no updates displays a message that there are no updates, instead of displaying nothing
Try SourceForge for automatic updating
Merge branch 'master' of github.com:UniversalMediaServer/UniversalMediaServer