- Add notset support to the test log
  + The KIWILog implements notset indicators. The test log needs to handle
    this to support testing more code
- Implement file comparison support
  + Thus far we have encoded reference results in the test directly. This is
    not practical when comparing larger generated files such as container or
    ovf configuration files. This implements support for storing reference
    results as files and using the reference results for comparison
- Implement OVF config writer class
  + This isolates the configuration writing functionality from other code
    and makes it unit testable.
  + Update the ovf file writing to more closely resemble what vCloud expects
  + Tie the new class into the config writer factory
  + Use the new code in ImageFormat directly, more restructuring is needed
    to use the factory.
- Only create a manifest file for OVA, it is not expected or needed for OVF
- Unit tests for the new OVF config file write
  + Include reference results using the new file comparison mechanism
- oblige by the new indentation style
Merge pull request #382 from rjschwei/ovf

Fix in OVF creation and refactoring (bnc #889852)