Merge from vendor branch TNF:

Merge from vendor branch TNF:
Initial import of lighttpd-1.4.3 as www/lighttpd.

LightTPD is a secure, fast, compliant, and very flexible web-server
which designed and optimized for for high-performance environments.
With a small memory footprint compared to other webservers, effective
management of the CPU load, and advanced feature set (FastCGI, CGI,
Auth, Output-Compression, URL-Rewriting and many more), LightTPD is
the perfect solution for every server that is suffering load problems.

This is loosely based on the lighttpd package from pkgsrc-wip by
Piotr Stolc <socrtp@soclab.eu.org>.