We need to identify ourselves as HTTP/1.1 so Range: works;
and so the server can return HTTP/1.1 instead of HTTP/1.0.

Tested against lighttpd 1.4.13

git-svn-id: https://svn.musicpd.org/mpd/trunk@5394 09075e82-0dd4-0310-85a5-a0d7c8717e4f