Docker Container Restart Fix

- Fix s6 fifodir error on container restart
- Add .tags* to .gitignore (Atom auto ctags generation)

docker/s6/.s6-svscan/finish

@@ -1,2 +1,5 @@
 #!/bin/sh
-exec /bin/true
+
+# Cleanup SOCAT services and s6 event folder
+rm -rf $(find /app/gogs/docker/s6/ -name 'event')
+rm -rf /app/gogs/docker/s6/SOCAT_*