Since there are multiple versions and that the official site isn't maintained,
we took the iaxclient version and merged it in here. We'll try to keep in sync
with those repos, and maybe we could host an updated version, or contact
upstream to ask them to merge the newer code.

https://iaxclient.svn.sourceforge.net/svnroot/iaxclient/trunk/
   `-> lib/libiax2

We'll try to merge often and keep up to date with them.

Modify Fedora Core spec to support fedora core 6 (libsamplerate, libeXosip2)

Makefile.am and m4 updates for warnings and paths, README updates.

Remove libexosip from CVS

Remove libexosip2
Add --disable-sflphoneqt to compile without X

Adding libiax2 to library dirs

Use PORTAUDIO_LIBS variable to compile libportaudio.la with -lflags (-lasound)