Maintenance Fixes

This release contains fixes only - some for bugs, some for compatibility issues, other general maintenance.

Fixes

• Compatibility:
  • replace non-portable on_exit with portable at_exit (#62),
  • address gcc8 compiler warnings;
• Scan Screen:
  • fix memory leak in scan handler (#63);
• Info Screen:
  • fix logic around uninitialized variable (#64);
• Configuration Screen:
  • fix numerical key issue on ARM 32bit (Raspberri Pi 2, #66).