radicale3: updates due to radicale 3 vs 2 changes

* Various options have changed since radicale2, and the current
  initscripts set configuration that prevents radicale3 from starting
  in some cases. So update the options to radicale3.
* LuCI will not display the app when the config file is empty, so
  uncomment the first (server section) line.
* Changed the default data directory to /var (emphemeral storage) as
  OpenWrt policy is to not write flash by default. As with PostgreSQL,
  to be useful the user will need to set configuration for an
  appropriate path.

Signed-off-by: Daniel F. Dickinson <dfdpublic@wildtechgarden.ca>
(cherry picked from commit b1210d155d)

net/radicale3/files/radicale3.config

@@ -1,4 +1,4 @@
-#config section server
+config section server
 	# list host 127.0.0.1:5232
 	# list host ::1:5232
 

net/radicale3/files/radicale3.init

@@ -1,7 +1,7 @@
 #!/bin/sh /etc/rc.common
 # shellcheck shell=ash
 # cspell:words CFGDIR SYSCFG USRCFG cfgfile chgrp defval getline hostlist
-# cspell:words htpasswd radicale tmpconf tmpusers
+# cspell:words htpasswd radicale tmpconf tmpusers multifilesystem
 
 # shellcheck disable=SC2034
 START=99
@@ -11,7 +11,7 @@ PROG=/usr/bin/radicale3
 CFGDIR=/var/etc/radicale3
 SYSCFG=$CFGDIR/config
 USRCFG=$CFGDIR/users
-DATADIR="/srv/radicale3/data"
+DATADIR="/var/radicale3/data"
 
 conf_line() {
 	local cfgfile="$1"
@@ -77,9 +77,6 @@ conf_section() {
 			conf_getline "$cfg" "$cfgfile" protocol
 			conf_getline "$cfg" "$cfgfile" ciphers
 		fi
-
-		conf_getline "$cfg" "$cfgfile" dns_lookup 1 1
-		conf_getline "$cfg" "$cfgfile" realm
 		;;
 	encoding)
 		conf_getline "$cfg" "$cfgfile" request
@@ -92,6 +89,7 @@ conf_section() {
 			conf_getline "$cfg" "$cfgfile" htpasswd_encryption plain
 		fi
 
+		conf_getline "$cfg" "$cfgfile" realm
 		conf_getline "$cfg" "$cfgfile" delay
 		;;
 	rights)
@@ -106,18 +104,16 @@ conf_section() {
 		if [ -n "$value" ]; then
 			DATADIR="$value"
 		fi
-		conf_getline "$cfg" "$cfgfile" filesystem_locking 1 1
+		conf_getline "$cfg" "$cfgfile" type
 		conf_getline "$cfg" "$cfgfile" max_sync_token_age
-		conf_getline "$cfg" "$cfgfile" filesystem_close_lock_file 0 1
 		conf_getline "$cfg" "$cfgfile" hook
 		;;
 	web)
 		conf_getline "$cfg" "$cfgfile" "type"
 		;;
 	logging)
-		conf_getline "$cfg" "$cfgfile" config
-		conf_getline "$cfg" "$cfgfile" debug 0 1
-		conf_getline "$cfg" "$cfgfile" full_environment 0 1
+		conf_getline "$cfg" "$cfgfile" level info 0
+		conf_getline "$cfg" "$cfgfile" trace_on_debug 0 1
 		conf_getline "$cfg" "$cfgfile" mask_passwords 1 1
 		;;
 	headers)