period in the bd is a float but v2 api expects an int

  File "/usr/local/lib/python2.7/dist-packages/wsmeext/pecan.py", line 68, in callfunction
    result = f(self, *args, **kwargs)

  File "/home/asalkeld/stack/ceilometer/ceilometer/api/controllers/v2.py", line 405, in statistics
    for c in computed]

  File "/home/asalkeld/stack/ceilometer/ceilometer/api/controllers/v2.py", line 306, in __init__
    super(Statistics, self).__init__(**kwds)

  File "/usr/local/lib/python2.7/dist-packages/wsme/types.py", line 552, in __init__
    setattr(self, key, value)

  File "/usr/local/lib/python2.7/dist-packages/wsme/types.py", line 326, in __set__
    raise ValueError("%s: %s" % (self.name, e))

ValueError: period: Wrong type. Expected '<type 'int'>', got '<type 'float'>'

192.168.1.70 - - [25/Feb/2013 16:07:47] "GET /v2/meters/speed/statistics HTTP/1.1" 500 157