NSD4 beta3

Hi,

The new beta for NSD4 is available, NSD4.0.0b3:
http://nlnetlabs.nl/downloads/nsd/nsd-4.0.0b3.tar.gz
SHA1 15afd52dbb3c9018a3f8c5e034b3e7029e5eae82
SHA256 1348f1290b2ee2b04dc4558d55cb6255bbeb39b85134aab7c98545a737db55c2

This software is in beta. This release fixes several (small) beta
issues. The most important is the fix for the spurious assertion failure
in the RRL code.

Fixes
- - applied patch from Robin Hack to remove double pid file truncation.
- - repattern is called reconfig (because most config options are
  picked up, except for superuser options (chroot, logfile, port))
- - document that the zonefile attribute can be empty.
- - documented that the _implicit_ pattern names are used internally.
- - Added zonefiles-check option, default yes, check mtimes of zone files
  on sighup and startup (from Robin Hack).
- - Fix spurious assertion failure for some rrl blocks.
- - Tabs and spaces nicer in nsd.conf.sample.
- - List libevent in README.
- - Fix configure for gentoo gcc and headers.
- - do-ip4 and do-ip6 nsd.conf options just like unbound.
- - do not leave task files in /tmp if nsd fails to startup because
  of file permissions.
- - create xfrdir on make install (does not remove on make uninstall,
  because this could be /tmp).
- - Fix segv if xfrdir does not exit.
- - log ip address with tcp failure.
- - Fix time calculation of zone transfer.

Best regards,
   Wouter