Update to Speex

[Jean-Marc Valin]

Hi,

I just wanted to let you know that I recently split the Speex library
into libspeex and libspeexdsp. The libspeex part contains the codec and
is fully compatible with the 1.0 version of libspeex. The libspeexdsp
part is basically the new (unstable0 features (preprocessor, AEC, ...)
that appeared in the 1.1/1.2beta branch. So I guess the debian packages
for Speex would need to be updated accordingly.

I've also noticed that debian still has 1.1.12, so I thought it would be
a good opportunity to update. The split version of Speex will soon be
released as 1.2beta3. If you want to start playing with it, the current
svn/git is quite stable and no breakage/instability is expected before
beta3.

Cheers,

	Jean-Marc