Changes

Summary

1. Add Nutch to the list of blocked crawlers in Nginx. (details)
2. More compact regex for blocked crawlers in Nginx. (details)

Commit 2cf618e13a16bf13f43fecc5a754acdb1885fe4d by omega8cc Add Nutch to the list of blocked crawlers in Nginx.
	http/nginx/server.tpl.php
Commit 2b6a6ca5d74e11ef7753668c831924a37022b7a7 by omega8cc More compact regex for blocked crawlers in Nginx.
	http/nginx/server.tpl.php