[opus] opus_multistream_encode_float not working in libopus 1.1

[Alpha Thinktink]

>
> You're right. Doesn't work on the libopus-1.1 source tarball. Sorry
> about that!


Just finally figured out how to download the git package.  Seems to do
it on the git package as well.

I've modified the bat file to exit 0 right away and manually created
the version.h file with the "define" you mentioned earlier and finally
got it to compile opus.dll but only after directing the opus project
to find the lib files by absolute path.  Gonna try to see if I can get
it to run under a debugger but I make no promises.

As a side note:
Every time I try to reply to your responses from the mailing list, it
always wants to reply directly to your mail account instead of the
list.  I have to hit reply all and then delete your e-mail from the
list to get it to send to the list only.