NPY_IN_ARRAY -> NPY_ARRAY_IN_ARRAY; NPY_INOUT_ARRAY -> NPY_ARRAY_INOUT_ARRAY

http://docs.scipy.org/doc/numpy/reference/c-api.array.html#PyArray_FromAny
pyArray_DOUBLE -> NPY_DOUBLE
provide (PyArrayObject*) casting for arrays passed to PyArray_DATA
turn off the deprecated API
BUG: Fix the definition for PPG.
Merge pull request #24 from enthought/fix/ppg-definition

BUG: Fix the definition for PPG.
Merge pull request #22 from enthought/update-numpy-api

Update NumPy API
ENH: Make the parser handle offsets.
Merge branch 'master' into fix/clean-unit-parser-context

* master:
  BUG: Fix the definition for PPG.
  turn off the deprecated API
  provide (PyArrayObject*) casting for arrays passed to PyArray_DATA
  pyArray_DOUBLE -> NPY_DOUBLE
  NPY_IN_ARRAY -> NPY_ARRAY_IN_ARRAY; NPY_INOUT_ARRAY -> NPY_ARRAY_INOUT_ARRAY

Conflicts:
	scimath/units/tests/units_test_case.py
ENH: Document CHANGES.