replace default openwrt banner
add authorised key when setting password.
don't try to add authorised ssh key, since the telnet set root pass
script does that now.  This script can now run through without any
user input.
add missing packages and relocate get_extra_files for mr3020 into
mr3020-packages directory.  In reality the packages get used for
wr703n as well.  Need to refactor out the common stuff into an
appropriately named directory heirarchy.
add Serval Mesh APK to web site.
more work on the captive portal web page.  Still very ugly, but
getting closer to a starting point that someone else can beautify.
add more web site stuff, including the source.