webdav support

[AJ Weber]

I will be setting up a "server" for webdav access.  Basically for SSL 
session caching only, not much else but that and proxy back to the 
actual app server.

Do I need the webdav and the ngx-dav-ext-module to support all the 
WEBDAV http methods just to pass-thru?  Or are those modules just needed 
if I want to filter and/or parse the http traffic?

Thanks,
AJ