Support snapper 0.7.0 (#57)

Snapper changed the order of columns, ID now comes before type.

41_snapshots-btrfs

@@ -237,8 +237,8 @@ snapshot_list()
 	# Query info from snapper if it is installed
 	type snapper >/dev/null 2>&1
 	if [[ $? -eq 0 ]]; then
-		local snapper_ids=($(snapper -t 0 -c "$snapper_config" list | tail -n +3 | cut -d'|' -f 2))
+		local snapper_ids=($(snapper -t 0 -c "$snapper_config" list | tail -n +3 | cut -d'|' -f 1))
-		local snapper_types=($(snapper -t 0 -c "$snapper_config" list | tail -n +3 | cut -d'|' -f 1))
+		local snapper_types=($(snapper -t 0 -c "$snapper_config" list | tail -n +3 | cut -d'|' -f 2))
 
 		IFS=$'\n'
 		local snapper_descriptions=($(snapper -t 0 -c "$snapper_config" list | tail -n +3 | cut -d'|' -f 7))