- handle repositories in the new data structure
  + remove legacy methods for repository handling
    ~ getHttpsRepositoryCredentials_legacy
    ~ getRepositories_legacy
    ~ ignoreRepositories_legacy
    ~ setRepository_legacy
    ~ addRepositories_legacy
  + modify CommandLine object to handle KIWIXMLRepositoryData
    objects instead of handle arrays of disconnected
    repository data
  + modify the command line processor (kiwi.pl) to create
    KIWIXMLRepositoryData objects
  + eliminate the repository processing from the changeset
    that is used to modify the boot description. The
    information is still in the changeset but is no longer
    considered
- added tests/writeTester for XML import/export tests
- make sure writeTester gets installed