new features
- expand sprintf symbols in server-URL so that
192.168.0.1/%Y/%m
will upload to192.168.0.1/2025/01/
%Y
year%m
month%d
day%H
hour%M
minute%S
second%q
quarteryear%j
day-of-year
other changes
- upgrade Android SDK Level from 28 to 34; this kills support for uploading from old apps
- use the
PW
header for authentication instead of HTTP Basic-Auth