use configure with option --without-iax2 to disable iax2 protocol. Then make clean and recompile

Still bad for default and dmix

//TODO
Improve the ringtones quality

Conflicts:

	src/audio/codecDescriptor.cpp

Seems to improve plug:hw, but no effects on defaulf plugin or dmix!!!

Before loading the codecs the user set, check if this codec is loaded.
In fact, it could have been erased and causes gtk bug

!!!!!!!!!!!!!!!!!!!!!!!!!!!
REMOVE ILBC CODEC FROM INSTALLATION DIRECTORY (ie libdir/sflphone/codecs ) TO MAKE IT WORK

At startup, the installation directory is scanned and the available shared library
(codecs) are loaded in memory.

Conflicts:

	src/Makefile.am

Website update + clean build system

Introduced by the video branch

Still todo:
improve ringtones treatment ( only one ring for now !!!!!!!)
buffer overrun on default playback