Merge changes to Apache 2.4 example config files

Not only do we need the JSPAC->TPAC changes that went into the base
Apache example configs, we should also move to generating these files
instead of having hardcoded values. Longer term, we should probably just
generate the right example configs from one common base until Apache 2.2
is dead and gone, but this improves the Apache 2.4 experience greatly.

Signed-off-by: Dan Scott <dscott@laurentian.ca>
Signed-off-by: Mike Rylander <mrylander@gmail.com>