[MPlayer-dev-eng] http stream basic auth base64_encode() fix

[Jeff D'Angelo]

So that it conforms to RFC 2045:

<http://jeffdangelo.org/patches/>
MPlayer-1.0pre7try2.http_basic_auth_base64_encode.patch
MPlayer-cvs-main-20060228.http_basic_auth_base64_encode.patch

The two patch files are the same patch, but diffed against each of
MPlayer-1.0pre7try2 and today's main CVS copy, libmpdemux/http.c version
1.34; both work equally well with the line offsets.  These were done diff
-r -u, let me know if you prefer -c format.

Tested successfully against an Icecast 2.2.0 server (Otto Audio Jukebox).

Let me know if you need anything else.

-- 
Jeff