Support for wildcard/regex purges (/purge/*.jpg)

[szepeviktor]

Reason: Impossible with current cache implementation.

[denji]

Maybe this will solve the problem https://github.com/wandenberg/nginx-selective-cache-purge-module#nginx-selective-cache-purge-module

[szepeviktor]

Thank you.
I've consulted with @wandenber and it turned out that for a specific reason Redis is involved in his module.
I do like and use Redis but it is blocker for me when used in a web server's cache module.