LCDproc: rethink of how RSSI is displayed for DMR to match HD44780 version (all modes 4-line screens only). Once it's working correctly, display on smaller screens can be revisited as scrolling should make display of RSSI feasible on smaller LCDs driven with LCDproc as opposed to directly by the host.
HD44780: Clean up and make displayed values uniform by specifying number of characters in value and inserting a missing minus for P25!
If you run another LCDproc client that doesn't dim the display when it displays its info, the display will effectively flash on and off (or dim/bright depending on your LCDd configuration) as it switches screens between MMDVMHost and the other client(s).
Making the dimming optional and turning it off in the host stops this "annoyance".