code broken up, bugs in jitted numba code
in-place builds
step-by-step approach to building numba kernels
replaced min/max functions with window functions, added kernel
kernel now jitted/tested
performance tuning
testing against tuned Cython
removed stale growcut_numba.py file
incorporate Stefan's comments

See: https://github.com/stefanv/growcut_py/pull/2 for reference.
PEP 8
manually inlined kernel
removed misleading inline keywords
Merge pull request #2 from ahmadia/numba

numba-accelerated growcut kernels