Check unix socket path length again to silence coverity

From: Stefan Bühler <stbuehler@web.de>

git-svn-id: svn://svn.lighttpd.net/spawn-fcgi/trunk@67 4a9f3682-ca7b-49a8-9a55-ba4640e46f83
remove windows fake support, didn't work anyway

From: Stefan Bühler <stbuehler@web.de>

git-svn-id: svn://svn.lighttpd.net/spawn-fcgi/trunk@68 4a9f3682-ca7b-49a8-9a55-ba4640e46f83
Fix resource leaks in failure cases (found with coverity)

From: Stefan Bühler <stbuehler@web.de>

git-svn-id: svn://svn.lighttpd.net/spawn-fcgi/trunk@69 4a9f3682-ca7b-49a8-9a55-ba4640e46f83