CDMS2/MV2.newaxis doesn't work

[durack1]

The numpy.newaxis function should add a new (singleton) axis to an existing variable as per the docs:

>>> type(intTo)
<class 'cdms2.tvariable.TransientVariable'>
>>> intTo_NP = np.array(intTo)
>>> type(intTo_NP)
<type 'numpy.ndarray'>
>>> intTo_NP.shape
(384, 320)
>>> intTo_NP_expanded = intTo_NP[np.newaxis]
>>> intTo_NP_expanded.shape
(1, 384, 320)

But it doesn't seem to work for cdms2/MV2:

>>> intTo.shape
(384, 320)
>>> intTo_expanded = intTo[mv.newaxis]
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/uvcdat/2.4.0rc1/lib/python2.7/site-packages/cdms2/avariable.py", line 1401, in __getitem__
    speclist = self._process_specs(key, {})
  File "/usr/local/uvcdat/2.4.0rc1/lib/python2.7/site-packages/cdms2/avariable.py", line 1169, in _process_specs
    raise CDMSError, 'Sorry, you cannot use NewAxis in this context ' + str(specs)
cdms2.error.CDMSError: Sorry, you cannot use NewAxis in this context (None, slice(None, None, None))

It's likely that the plans @dnadeau4 has for cdms2 updates (better wrapping all the existing numpy functions) will solve this, but thought it useful to document.

[dnadeau4]

fixed with branch numpy1_11

[durack1]

@dnadeau4 thanks!!