Accomodate split nova repo into enterprise and nova.
Fix HAVE_NOVA/HAVE_ENTERPRISE instances.
Fix test for HAVE_NOVA/HAVE_ENTERPRISE conditionals.
Build static libraries so Enterprise can build specialized binaries.
Moved some detection out of the main configure.ac file.
Remove reference to Enterprise libraries.
Add framework for dynamic Enterprise function calls.
Add unit test for enterprise extension loading.
Switch to system include style.
Better error messages and silence a warning.
Add --enable-builtin-extensions and add more args to extension macros.
Fix missing enterprise extension macros.
Enable errors to be detected whenever macros aren't properly used.
Remove macro detection define.

This isn't needed anymore, since we always detect missing macros now.
Make builtin extensions the default and fix linking.
Fix more enterprise extension collisions.
Include missing policy files in "make install".
Remove leftover bundle reference.
Finally remove the nova symlink hack! (yey!)
Switch to a default that works for Community.