Oz 0.12.0 release

I'm pleased to announce release 0.12.0 of Oz. Oz is a program for doing automated installation of guest operating systems with limited input from the user. Release 0.12.0 is a bugfix and feature release for Oz. Some of the highlights between Oz 0.11.0 and 0.12.0 are:

• Fixes to concurrent oz-install invocations
• Python 3 compatibility in the test suites
• Support for Ubuntu 12.04.3
• Support for Mageia
• Allow a MAC address to be passed in (instead of auto-generated)
• Support for RHEL5.10
• Support for Ubuntu 13.10
• Use lxml instead of libxml2 for XML document processing (it has much better error messages)
• Remove the unused "tunnels" functionality
• Support FreeBSD 10.0
• Remove deprecated functions from the Guest class
• Speed up guest customization on guests that support NetworkManager
• Follow subprocess commands as they are executed (makes debugging easier)
• Ensure that any paths from the user are absolute, otherwise things don't work properly
• Add support for OpenSUSE 13.1
• Add support for Fedora 20
• Add support for RHEL-7

A tarball and zipfile of this release is available on the Github releases page: https://github.com/clalancette/oz/releases. Packages for Fedora-19, Fedora-20, and EPEL-6 have been built in Koji and will eventually make their way to stable. Instructions on how to get and use Oz are available at http://github.com/clalancette/oz/wiki. If you have questions or comments about Oz, please feel free to contact me at clalancette at gmail.com, or open up an issue on the github page: http://github.com/clalancette/oz/issues. Thanks to everyone who contributed to this release through bug reports, patches, and suggestions for improvement.