v.3.1.2

This is a maintenance release.

• reverted disable windows firewall on startup (issue #559 and #562)
• fixed application cannot be started because of continuously restart
• fixed possible duplicate apps entries with short path (issue #640)
• fixed network alert steals the focus (issue #637)
• fixed network paths parsing (issue #629)
• fixed netbios direction (issue #636)
• fixed localization (issue #607)
• fixed bugs