Add options for user and group to run nginx as.
Add option to compile in full WebDAV support.
Make nginx uid and gid optional.
Add braces to fix compilation errors.
I don't understand how Apache gets away without them.
Add varnish module
Merge pull request #159 from NixOS/nginx-fullWebDAV

Add options for user and group to run nginx as.
Use pam_loginuid

This set the loginuid property of processes for auditing.
Manual: "mke2fs -j" -> mkfs.ext4
kde4: use udisks2 for kde 4.10+