2019-05-17: these two updates:
	2019-04-19_sensorgnome_standard_update.tar.bz2  (for most networked SGs)
	2019-04-19_sensorgnome_mobile_update.tar.bz2    (for those few SGs using USB cellular modems)
	might correct problems with connecting to the new sensorgnome.org server
	for data sync and receiver status

2017-03-06: support revision "D1" of DLink DUB-H7 USB hub.
	This update supports the newer hub, but maintains support for all older
	revisions.  This update can be applied to any 2016 or 2017 version of
	the sensorgnome software (and probably older ones).

2016-09-13: provide a WIREDNET.TXT in /boot/uboot, so that the default behaviour
is to *not* run a DHCP server on eth0.

2016-08-25: check for the existence of a file called WIREDNET.TXT in /boot/uboot before starting
            udhcpd on eth0.  If the file exists, udhcpd is not started.  This permits the SG
            to co-exist on a LAN without serving IP addresses to other local boxes.  However,
            this also prevents you from connecting to the SG via ethernet cable directly from
            your computer.

2016-07-21: - add bandgap code back into webserver.js (inadvertently missed from 2016-04-28 update); closes #1
	    - add missing </b>s to index.html; closes #2

2016-07-06: allow root login to FTP (password root) so that log files can be downloaded, etc.

2016-03-??: add pieces required for USB modem:
	- make sure gpsd is using /dev/ttyO4 directly (for GPS cape), not
	  via ttyUSB0.  What happens for a USB puck GPS?

	- usb_modeswitch (packages for program and data)
	- install these packages:
		- libjim0debian2_0.73-3_armhf.deb
		- usb-modeswitch-data_20120815-2_all.deb (or more recent)
       		- b-modeswitch_1.2.3+repack0-1_armhf.deb (or more recent single file)
  		- libpcap0.8_1.3.0-1_armhf.deb
		- ppp_2.4.5-5.1+deb7u2_armhf.deb


2016-02-17: add missing sqlite3 shell application:
	/usr/bin/sqlite3
	This will permit the SG web interface to display the contents of the
	tag database on the receiver when the .sqlite version is installed.

2016-02-10: another serial number fix; some BBW have BB0X, rather than BB00
	in the middle; allow for hex digits in this 8th position.

2016-01-27:  serial number fix
	/etc/init.d/hostname.sh

	- test for hex (not just decimal) digits in serial number when checking
	for misaligned EEPROM serial number

2016-01-22: FCD missing from web interface device list fix:
	/home/bone/proj/bonedongle/master/public/javascripts/sensorgnome.js
	/home/bone/proj/bonedongle/scripts/get_hub_devices.pl

	- have GPS Cape appear at slot -1 in devlist so it doesn't mask
	directly attached FCD