[PATCH] pgarchives: Allow use of IP ranges for SEARCH_CLIENTS

Hello,

It's only possible to define single IP addresses in the SEARCH_CLIENTS directive (which defines who can use the search
API).This patch allows to use IP ranges such as 0.0.0.0/0.
 
That said, now that I've understood that SEARCH_CLIENTS should contain pgweb server's IP address and not the end user's
one,I'm not entirely sure this patch is useful.
 
It's up for discussion, then.

Cheers,
-- 
Célestin Matte