python code needs to be in a folder not caller "python"

[nzxwang]

currently saddle_recon.py does "from python.saddle_recon.reconstruction import *" to import stuff from saddle_recon.reconstruction.py as all of the python code is in a folder called "python"

[bcdarwin]

Seems kind of confusing to have the top level package named 'python'; should probably be changed to 'mice-python' or similar or otherwise restructured.