Add new config key auth_ad_negative_acl_ttl
Explicitly specify to listen on all IPv4 interfaces
Fix warnings using numeric equal with strings
Correctly escape DNs and search filters or external ACL helper script
Retrieve nested group members for filter profiles in external AD mode
Indentation fixes
Merge branch 'scabrero/squid-fix-external-ad' into 3.2

Conflicts:
	main/squid/ChangeLog
Merge branch '3.2' into jacalvo/missing-uses

Conflicts:
	main/squid/ChangeLog