Conflicts:
	meshpy/gmsh_reader.py

Add simple subclass of GmshMeshReceiverBase.

Add a simple concrete subclass of GmshMeshReceiverBase that imports
Gmsh data into NumPy arrays.

Update gmsh_reader.py

Will fail for 1D and 2D if this parameter is not passed.

Two extensions each build the same object file. Py2.5 puts them in
the same place, but they were built using different options. Boom.