include 3dAFNItoNIFTI command in interfaces.afni
include AFNItoNIFTI in module init file
now able to set prefix and file extension automatically NIFTI
added hash_file protocol and dummy test file
added changelog information
fix: matplotlib import to inside function
Attempt to set backend in local matplotlib
Set matplotlib backend from config in pyscript
Get backend configurable from node config
Fence matplotlib import with try block
add note about new interface to CHANGES
changes update tweak, spm __init__.py addition