This makes PyDataType_SHAPE more consistent with the Python API.

 - Added the PyDataType_HASSUBARRAY macro
 - Added the new NPY_DATETIME and NPY_TIMEDELTA entries to NPY_TYPES
 - Added the "kind" and "subarray" fields to the dtype class

Additional work could be done to expose the datatime metadata, but
non-performance users can already get at that data using the pure
python numpy.datetime_data function.

Author: Gerald Dalley

remove another reference to the old distutils build (in quickstart!) and clarify the description of the Sage notebook a bit

--HG--
extra : rebase_source : 305a362b2f79e4b7982a188ff5912a6621ea56a7

Do not abort .pxd processing due to previous unrelated errors.

They were declared as returning type `bint`, but this appears to be incorrect.

http://docs.scipy.org/doc/numpy/reference/c-api.array.html#PyArray_FROM_OTF

http://docs.scipy.org/doc/numpy/reference/c-api.array.html#PyArray_FROM_OT