PHP notices, trac #15058, database bugs, prevent external script removal

Added rewrite rules for Nginx.

Please check the comments of the following commits.

* <https://github.com/jesinwp/minify/commit/7a1417d8039c5e492f91477b8325469393439991>
* <https://github.com/jesinwp/minify/commit/5fd1bf6c311a3324503beae5c4e68d9375fb3829>