Add 'make test' rule from every assembly
Add 'make test' rule from every assembly

Won't work for assemblies not defined as having tests in
tests/Makefile.am, but convenient for others.  Also, make some
properties static in TestBase.

dufoli/hyena,arfbtwn/hyena,dufoli/hyena,arfbtwn/hyena,GNOME/hyena,petejohanson/hyena,petejohanson/hyena,GNOME/hyena