Log Message:-----------Add an explanation for the install process, from Damien Clochard.
Modified Files:-------------- pgsnap/pgsnap: INSTALL (r1.1.1.1 -> r1.2) (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgsnap/pgsnap/pgsnap/INSTALL.diff?r1=1.1.1.1&r2=1.2)
