marvin: build fails when no setuptools/distribute found
marvin: build fails when no setuptools/distribute found

appropriately warn the user to install setuptools.

Also - fixed the jenkins url for builds.a.o

Signed-off-by: Prasanna Santhanam <82219615980488abd2acc1a3d71cfb58f0b2b8b6@apache.org>

DaanHoogland/cloudstack,DaanHoogland/cloudstack,GabrielBrascher/cloudstack,jcshen007/cloudstack,resmo/cloudstack,wido/cloudstack,wido/cloudstack,wido/cloudstack,jcshen007/cloudstack,GabrielBrascher/cloudstack,GabrielBrascher/cloudstack,resmo/cloudstack,DaanHoogland/cloudstack,wido/cloudstack,resmo/cloudstack,mufaddalq/cloudstack-datera-driver,resmo/cloudstack,DaanHoogland/cloudstack,jcshen007/cloudstack,DaanHoogland/cloudstack,resmo/cloudstack,mufaddalq/cloudstack-datera-driver,resmo/cloudstack,jcshen007/cloudstack,mufaddalq/cloudstack-datera-driver,GabrielBrascher/cloudstack,mufaddalq/cloudstack-datera-driver,wido/cloudstack,jcshen007/cloudstack,GabrielBrascher/cloudstack,DaanHoogland/cloudstack,wido/cloudstack,mufaddalq/cloudstack-datera-driver,wido/cloudstack,GabrielBrascher/cloudstack,GabrielBrascher/cloudstack,jcshen007/cloudstack,DaanHoogland/cloudstack,jcshen007/cloudstack,resmo/cloudstack,mufaddalq/cloudstack-datera-driver