Add special case commands for instances where we are running dokku in debian

Refs #976

plugins/nginx-vhosts/post-delete

@@ -2,6 +2,10 @@
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
 
 case "$DOKKU_DISTRO" in
+  debian)
+    sudo /usr/sbin/invoke-rc.d nginx reload > /dev/null
+    ;;
+
   ubuntu)
     sudo /etc/init.d/nginx reload > /dev/null
     ;;