made small tweaks to fit for rpizero

manage.sh

@@ -62,7 +62,7 @@ talk_to_drone() {
 }
 
 kill_everything() {
-	for p in $pids_dir/*.txt; do echo "killing $p"; pkill $(cat "$p"); done
+	for p in $pids_dir/*.txt; do echo "killing $p"; sudo pkill $(cat "$p"); done
 }