Use nginx instead of Apache

[mdouchin]

Hi Tim,

It seems nginx could be a good alternative to Apache, see http://osgeo-org.1560.x6.nabble.com/Use-Nginx-to-serve-QGIS-Server-td5175087.html

I write this issue just to share interest, and will try it whenever I can find enough time...

[timlinux]

I'd also be interested to swap to NGINX...although I heard US gov users may not use NGINX :-P