[luci] 'yes' and 'no' for boolean settings in uci

[Conor O'Gorman]

Is there a reason that yes/no are currently not in the list of boolean
options?

Thanks,
Conor

diff --git a/package/base-files/files/lib/functions.sh b/package/base-files/files/lib/functions.sh
index b3e406c..f1d5397 100755
@@ -154,8 +154,8 @@ config_get_bool() {
 	local _tmp
 	config_get _tmp "$2" "$3" "$4"
 	case "$_tmp" in
-		1|on|true|enabled) _tmp=1;;
-		0|off|false|disabled) _tmp=0;;
+		1|on|true|enabled|yes) _tmp=1;;
+		0|off|false|disabled|no) _tmp=0;;
 		*) _tmp="$4";;
 	esac
 	export ${NO_EXPORT:+-n} "$1=$_tmp"