Switch from converting float arrays to Numpy
Work with any-length numpy arrays
Wrappers for 3D arrays (EPI, T1 and MNI volumes)
Fix order of typemaps
Use array sizes in C rather than in Python
Use in-place array by default
Consistent method naming
The arrays passed from Python are now the same as from Matlab
Use corrent voxel size (but hardcoded)
Fix memory related crash

Array data was free()'d before being able to be used.
Now, all arrays are passed as in-place, so numpy ensures
they remain in memory long enough.
Lots of debug output was removed.
No more crashes, only wrong matrix sizes
Add TODO's
Check data formats

Plotting input data works now, output data is still wrong
Flatten (pack) and unpack all arrays in Python

This will cause less confision, and is easier to test with few
modifications to C source.
Pack filters correctly