- implement support to build an image that runs as lxc container
  + add "lxc" as accepted value to image attribute
  + add container attribute to <type> element, this attribute
    is required for container building
  + create consistency check for container type
    + must have container attribute
    + container attribute value must be composed of word characters
    + container build must include lxc packsge (runtime check)
    + unit tests
  + implement processing of new attributes in the XML code
    + unit tests
- implement KIWIContainerConfigWriter
  + this class writes the configuration file and fstab file
    for a container
  + it is a child of KIWIConfigWriter
  + unit tests
- implement KIWIConfigWriter
  + base class for configuration file writers, at present it only
    has the container writer as a child. This class will help us
    to separate the code for other image types that have configuration
    file (ovf, vmware, xen) and create individual classes that are
    focused on only one thing
- implement KIWIConfigWriterFactory
  + factory class that hands out a *ConfigWriter objects based on
    the image type or image format being built
  + unit tests
- implement KIWIContainerBuilder
  + this class is responsible for the image creation for a container
    image only createImage is public and implements the creation
    procedure
  + is a child of KIWIImageBuilder
  + unit tests
- implement KIWIImageBuilder
  + base class for all *Builder classes, at present it only has the
    container builder as a child. This class will help us to peal
    apart the creation of various image types currently implemented
    in a tangle in KIWIImage and KIWIImageCreator
- implement KIWIImageBuildFactory
  + factory class that hands out *Builder objects based on the image
    type
  + unit tests
- integrate the new build infrastructure code into the image creation
  process for lxc containers
- add directory exist method to test case
- create container example for openSUSE 12.3 and 12.2
- examples
  + fix the text in the 12.3 examples to refer to 12.3, not 12.2
  + all network configurations, 12.2 and 13.3, STARTMODE
    value 'onboot' is no longer supported, changed to 'auto'
- add a chapter to the documentation providing information about
  the new container image type
- DB: rebuild documentation