'Tags the Halyard repo with a tag derived from --stable_version.'

def __tag_halyard_repo(self):

    self.__stable_version_tag = self.__stable_version
    if (not self.__stable_version_tag.startswith('version-')):
        self.__stable_version_tag = ('version-' + self.__stable_version_tag)
    self.__annotator = Annotator(self.__options, path='halyard', next_tag=self.__stable_version_tag)
    self.__annotator.parse_git_tree()
    self.__annotator.tag_head()
    self.__annotator.delete_unwanted_tags()
