Decay Control 0.9.0 Testing

- Re-enabled update checking, gotta get that one nutted out
- Updating config to include more shortly
- Notification of low decay rate possibly not acting as expected (inbuilt inactivity timer?)
- Localised all message strings, separated a couple from the code (helps later for translation)
- Removed flags from main /decay command to allow PublicDecayStatus to mean something