In the function ap_cache_check_freshness() in cache_uitl.c, 
"agestr" was always NULL. 	


In the function ap_scan_script_header_err_core() in 
util_script.c, added reading "Age" and "Expires" into 
r->heasders_out.


Not checking for cache control directive having the value
no-cache or no-store before printing the warning message 
with the assumption that those entities will not be cached, 
with the fix for the defects 15870 and 16133.

Is this condition check "info->expire != APR_DATE_BAD"
is redundant in function ap_cache_check_freshness()?
[Line 265, cache_util.c]