Issue #66: fix pharo travis download issue
Issue #66: fix pharo travis download issue

GsDevKit/gsDevKitHome,LisaAlmarode/gsDevKitHome,marianopeck/gsDevKitHome,GsDevKit/gsDevKitHome,dalehenrich/gsDevKitHome,dalehenrich/gsDevKitHome,rjsargent/gsDevKitHome,marianopeck/gsDevKitHome,rjsargent/gsDevKitHome,dalehenrich/gsDevKitHome,LisaAlmarode/gsDevKitHome