Build apache modules from a common source.
This allows us to build apache-1.3 and apache-2.0 modules from the
same source file(s). I've tested the apache-2.0 module; it builds
just fine. I haven't tested the apache-1.3 build because I don't have
an apache-1.3 build environment. Therefore I have not yet removed
the old module(s).
The new modules are named mod_shib_13.so and mod_shib_20.so
internally they are always "mod_shib"
git-svn-id: https://svn.middleware.georgetown.edu/cpp-sp/trunk@920
cb58f699-b61c-0410-a6fe-
9272a202ed29