packaging changes: Clean up scons arg scheme, and ensure that scons is
always called with the same args (other than the action).
3.23: 2020-08-06
doc/*xml all moved into www/internals.adoc
Convert all DocBook (.xml) to AsciiDoctor (.adoc)
Remove all XSL remnants.
gpsplot: speedup, add new options.
driver_ubx.c: Add decode for UBX-NAV-STATUS
gps/ubx.py: Improve decode for UBX-NAV-STATUS
cgps: Add popup help, interactive options.
Reorganize and split the man pages.
Small updates for u-blox M8 and M10
Deprecated mtk3331 and ashtech build options. Use nmea0183 instead.
gpssnmp: Move from contrib/ to clients, add manpage
Add www/gpsd-client-example-code.adoc
Add gpsdebuginfo script and man page.
ubxtool: Add BeiDou, Galileo, GLONASS, QZSS, and partial SBAS subframe decodes
Max serial port speed raised to 921,600.
SUBFRAME JSON now includes new fields to support multiple constellations.
gpsd: Add some ADR and UDR message partial decodes.
ubxtool: Add some ADR and UDR message polls and decodes.
Remove COMPASS_ENABLE. Always compile attitude code.
contrib/webgps.py: use argparse, arguments -V, --version, --no-html-head.
Add readonly flag to DEVICE JSON.
Control messages to gpsd now return JSON, instead of, sometimes, OK or ERROR.
gpsfake uses "# Date: yyyy-mm-dd" to set initial time.
Don't compute wrong GPS rollover after 2021-10-23.
Bump libgps to version 29.
c0a11853a2