#1 Update codea_hookmap.h for new Apache

[Matt Ryan]

Newer versions of Apache 2.0 (at least 2.0.40+) have
changed some of the ap_hook* functions so the
prototypes no longer match those typedef'd in
codea_hookmap.h. This behavior can be seen by trying
to compile codea_test_module.cpp.

Need to update codea_hookmap.h so that it uses the valid
Apache datatypes. Retest codea_simple_module.cpp and
codea_test_module.cpp to verify that the fix is working on
both.

Should make efforts to not lose backward compatibility
with older Apache versions if possible (may not be worth
it though).