BR20 Release Notes (autoextracted) - 2021/04/06 
2021.04b  MPFS12 Test release.
-------- RELEASE NOTES (OLD ON TOP, NEW DOWN) ------------------
Fixed Balance LED restore  2021.01r MkI
Added StackTsk timeout 1s                             2021.01s
Added UDP port filt. to prevent filling up the
UDP socket buff(1249). Updated FP Keypad soft (06).   2021.01u
Updated FP Keypad software again to correct ID 1206.  2021.01uMkII
Added IR codes TIME,SCAN,REPEAT,RANDOM. Unfinished.   2021.02a
Added retry ERR5_PI_RXINT_NODATA, Pic16 hex 0x1207,   
adj StackTsk timeout and UDP stuff.                   2021.02b 
Modified IR coded for BR4 NEW.                     
Changed FP D1..10 defaults to be = IR D1..10.         2021.02c
Fixed BAL and RCA IR codes for BR4 NEW.               2021.02d   
Updated WebGUI. Updated '~balance~', fixed '~mute~'.  2021.02e
Re-enabling phase invert, display "INV" on screen.
Disabled automatic phono board detect.                2021.02g
Fixed missing Bal scr disp open from PI command      
Fixed reading Pic16f15355 ID code form hex file,
see command #10INITKV1. Added TESTP16RST.             2021.02h
Fixing BR4 volume press & hold crash.
Fixing crash when press & hold vol & press vol shaft  
Fixed TEST0x commands.                                2021.02j
Added status=38 in BR20.INI to make FP LEDs blue. 
(Note: 6 is green default. Repower twice after edit!).  
Protecting LEDS I/O access from BR4 interrupts        2021.02L
Added #10TEST03 command to cycle thru all FP colors   2021.02m
Auto Phono Detect enabled                             2021.02n ph
Left-justifying the PI IP string on LCD display.      2021.02o ph
Fixed IP for PI in any src select.                    2021.02p ph
Added command to PI REQDISP                           2021.02q ph
Added diagnostics for GETVOL                          2021.03a
Adding configurable mute between format switching.    2021.03c
Using volume_mute()                                   2021.03d
Updated BCON WebGUI(8/03/2021)                        2021.03e
Moved POWER_CHECK to 10s bin                          2021.03f
Fixed Vol Preset & Max menu, set -80dB to disable  
preset, and changed increment to +/1dB.  
and save&restore last used volume. Added negative 
LED menu brightness range to select blue color,
positive selects green color (-100..+100)             2021.03g
Added immediate execution of brigrn, brired & brivol 
changes by SETH and SETD commands.         
GETD now returns bytes as unsigned not signed.        2021.03h
Implementing special bitmap display functions.        2021.03i,k
Increased PI TX/RX buffers to 1100 bytes from 512.    2021.03L
Disabled repeated REQABOUT, except once.              2021.03m
Changing SAVEBITMAP format to base64, add SETBAUD     2021.03n
Disabled Send_PI_REQDISP, allow SendRate_To_PI 
only when PI is not the selected source.              2021.03o
Speeding up timeslicing dusing SAVEBITMAP.            2021.04a
Fixing spurious erasing of bitmaps by some events.    2021.04b