Added Reporter class, simple helper for return state of some commands.

    func.__listed__ = True

    return func

class Reporter(object):

    '''

    Simple class used to report error, warning and success of command execution.

    '''

    def __init__(self):

        self._reports = {}

    def get_dict(self):

        return self._reports.copy()

    def success(self, oid, message):

        self._reports[oid] = ('success', message)

    def warn(self, oid, message):

        self._reports[oid] = ('warn', message)

    def error(self, oid, message):

        self._reports[oid] = ('error', message)

class CCHandler(RpcHandler):

    '''

    Base class for handlers of CloudControl server.