IPv6 support for uw-imap

[Toomas Soome]

hi!

I have developed ipv6 support for uw-imap imap-2001a version. udiff is
downloadable at http://muhv.pri.ee/~tsoome/soft/IPv6/ if anyone is
interested....

it's implemented on solaris system, others may need little work (or
extra libs to link it). this diff can be used to make pine 4.43 to
support IPv6 as well. 

toomas
-- 
The all-softening overpowering knell,
The tocsin of the soul, -- the dinner bell.
		-- Lord Byron