make cffi_cl populate_constants less magical.
Fix accidental use of DP in tests
Bump version
Rename pyopencl.ipython to pyopencl.ipython_ext to convince 2to3 that 'from IPython import' is not package-local
Fix AttributeError: 'Win32Platform' object has no attribute 'GLX'
Delete IPython support in original location
skip tests unsupported by pocl