Definition of ClusterDefinitionCriteria is 'ready for release'

Cf. https://github.com/incf-nidash/nidm/pull/201
fix: Nifti terms were replaced by "image/nifti"

As discussed in https://github.com/incf-nidash/nidm/pull/158
fix: Nifti terms were replaced by "image/nifti"

As discussed in https://github.com/incf-nidash/nidm/pull/158
fix: Inf -> INF
fix: small inacurracies
Merge pull request #219 from cmaumet/fix_spm_gt

Small fixes in SPM ground truth
Display separately differences coming from each graph
Script: create unit test
Script: create examples for unit testing
Script: generate SPM main example
Generic class: create example for selected templates
check name instead of qname as prefix abv unknown
format should be string
Make display public
Test: spm_results.ttl should be generated using templates
Test: example001_spm_results.ttl should be generated using templates
Create example001 from templates
Renaming
test: spm example 002 built with templates
Update provn from ttl (instead of the other way around)

This is now needed as turtle files will be generated using the
templates.