Test the custom backend for real in tests/hwloc...
Test the custom backend for real in tests/hwloc...

Test the custom backend for real in tests/hwloc_backends

Try inserting a group, another topology, and loading.

This commit was SVN r3939.

shekkbuilder/hwloc,shekkbuilder/hwloc,ggouaillardet/hwloc,shekkbuilder/hwloc,shekkbuilder/hwloc,ggouaillardet/hwloc,ggouaillardet/hwloc,ggouaillardet/hwloc