Ach 2.0.0 Release

[Neil T. Dantam]

Dear All,

Ach 2.0.0 is released. Notably, this includes a Linux kernel module
contributed by Kim Bøndergaard with Prevas A/S.

Usage details on the kernel module are in the manual:
http://code.golems.org/pkg/ach/manual/

Downloading
===========
* Tarball: http://code.golems.org/src/ach/
* Debs: http://code.golems.org/debian
* Git: http://github.com/golems/ach

NEWS
====
* Feature: In-kernel channel backend on Linux
- Enables multiplexing via select()/poll()
- Experimental event loop in "ach/experimental.h"
* Feature: DNS/mDNS integration
- mDNS and DNS lookup of channel hosts
- Integration with Avahi to advertise channels
* Feature: Zsh completions for achtool, achd, achcop
* Deprecate: Old option flags to achtool (-C, -F, -D, -U)
- Will be removed in the future
* Deprecate: CMake build
* Change: Accessor functions for setting attributes
* Change: C++ bindings are header-only

Cheers,
-ntd