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Changes:

SSB demodulation mode added (menu DEMODU)
New function for programmable buttons to switch demodulator modes (SWITCH DEMODUL)
More frequency steps (only available in the radio, not available in CHIRP)
Use the custom battery percentage calculations for battery icon and low battery beeping
Modified levels for battery icon (3 below 88%, 2 below 65%, 1 below 41%, 0 below %17, blinking below 5%)
Low battery popup, stops annoying beeping when confirmed
Fix s-meter over S9 values calculation
Spectrum analyzer RSSI trigger limited to screen boundaries