updated version.php to reflect 2.4.8-prerelease
updated version.php to reflect 2.4.8-prerelease

ilios/ilios,Trott/ilios,justinchu17/ilios,thecoolestguy/ilios,thecoolestguy/ilios,justinchu17/ilios,justinchu17/ilios,ilios/ilios,dartajax/ilios,justinchu17/ilios,dartajax/ilios,stopfstedt/ilios,Trott/ilios,stopfstedt/ilios