Removing is_internal_IP() function. Resolves ticket 4645.
Using proper functions to create tor_addr_t.
Fixes for bug4645 fix.
Respond to AAAA requests on DNSPort with AAAA automaps

Other DNS+IPv6 problems remain, but at least this fixes the
automapping.

Fixes bug 10468; bugfix on 0.2.4.7-alpha.
Add one more missing heck on bug4645 fixes
Merge remote-tracking branch 'public/bug4645'

Conflicts:
	src/or/dirserv.c
Merge remote-tracking branch 'public/bug10468_024'