Add idx argument to read_xifti and similar functions, to conserve memory if only some columns are being read in. It will be faster for reading in a small number of columns, but slower for reading in a large subset.
Add ... argument to transform_xifti
Add apply_xifti which works similar to the base function apply
The default surface is now less inflated, so it looks more like a brain
Two other surfaces are available via the function load_surf
Schaefer and Yeo parcellations are available via the function load_parc
demo_files() is now ciftiTools.files()
Rename unmask_vol to unmask_subcortex
Add resamp_res argument to read_surf
Resample surface in add_surf if necessary
