Revert "Change the 'x' to a '*' to fix password auth with Kerberos and LDAP. Fixes issue #26."

This reverts commit 51264ccf9b8c74773c79f8eecbb25afe018b2228.

Fixes issue #35.
Copy ownership of the shadow cache, just as permission bits are.  Patch from javi@trackuino.org.

Fixes issue #36.
Updated THANKS.
Add support for RFC 2307 BIS; patch from Jesse W. Hathaway <jwh@chappy.com>.  Control is selected with the config option 'rfc2307bis = 1' in the relevant sections.
Update thanks for patch.
Merge branch 'rfc2370bis'

Conflicts:
	THANKS
Add updated git repo path to control file.
Merge branch 'master' into debian
Remove suggests on python zsync, which doesn't exist.