Update INSTALL.
Update INSTALL.

pouete/libssh,mwgoldsmith/libssh,mwgoldsmith/ssh,robxu9/libssh,nviennot/libssh,elastichosts/libssh,wangshawn/libssh,DouglasHeriot/libssh,kedazo/libssh,mwgoldsmith/libssh,taikoo/libssh,pouete/libssh,sebadoom/libssh,Distrotech/libssh,bigcat26/libssh-mod,elastichosts/libssh,Distrotech/libssh,mwgoldsmith/ssh,kedazo/libssh,Distrotech/libssh,nviennot/libssh,taikoo/libssh,nviennot/libssh,wangshawn/libssh,DouglasHeriot/libssh,mwgoldsmith/libssh,robxu9/libssh,wangshawn/libssh,Distrotech/libssh,kedazo/libssh,pouete/libssh,sebadoom/libssh,taikoo/libssh,mwgoldsmith/ssh,bigcat26/libssh-mod,kedazo/libssh,robxu9/libssh,sebadoom/libssh,nviennot/libssh,DouglasHeriot/libssh,mwgoldsmith/ssh,taikoo/libssh,bigcat26/libssh-mod,elastichosts/libssh,sebadoom/libssh,mwgoldsmith/libssh,wangshawn/libssh,robxu9/libssh,pouete/libssh,bigcat26/libssh-mod,DouglasHeriot/libssh