ENH: interpolate: use Cython fused types instead of templating in interpnd.pyx
MAINT: remove generate_qhull/generate_interpnd.py, use cythonize from now on
ENH: interpolate: use only memoryviews in interpnd.pyx and assume more contiguous arrays
GEN: interpolate: regenerate interpnd.c
Merge pull request #211 from pv/enh/interpnd-fused-types

interpnd: Cython cleanup, fused types