[LAU] JACK Network Manager 0.2.3.1

[Mike Cookson]

After some talks with falktx I publiced new version, which has Makefile and (by my own initiative) Debian-related files.
Since build system may store several builds, e.g. with various prefixes, Makefile manages by default last created build.
To change default build run:
  $ ./configure --default-build=build_name
Or run
  $ ./configure --builds
to get list of available builds.

Also, install script now has one argument to override install root (default is "/").
E.g., if you type:
  ./configure --prefix=/usr --buildname=build

  ./install ~/packages