Added a DEBUG_MEM define to disable optimization and for future enhcement.
Prevented "counting" vars from being cached.
Prevented vars from being cached unless they are marked "available" in phase.
Now use var->value as the cache hash key as a unique value.
Fixed which pools we are using for rule processing.
Updated regression tests for tfns.
Updated regression test script to handle extra APR_POOL_DEBUG output.
See #364.
Cleaned up what vars are cacheable.
Added parens around "*foo++" where it clarified the operation to be "*(foo++)".
Added " at VARNAME" to operator matches where needed.
Escaped var->name in the var generation (user-supplied data).
Marked a bunch of TODOs as ENHs instead.
Transformed some C++ style comments to C style.
Removed the %0-9 macros code which was commented out.
Optimized some ctl action code so that multiple ifs are else ifs.
Implemented some error messages marked as ENH.
Make commented out acmp debugging a configure-time option.
Cleanup GEO debug log messages.
Added relative filename support for geo dbs.
Added help text to Sec* directives.
