Merge pull request #116 from cmaumet/preferredFilenames

Merge: Use preferred file names for nifti exported as part of NIDM-Results
Script: check that examples comply with nidm-results.owl
resolve conflict while rebasing with preferredFileNames
nidm:visualisation is found in nidm:ExcursionSet
softwareRevision is in spm namespace
Delete duplicate softwareAgent
Get turtle conversion on the fly (instead of using link in README)
nidm:dimensions -> nidm:dimensionsInVoxels
Attributes propagated to children classes
nidm:MaskMap subClassOf nidm:Map
nidm:ContrastMap subClassOf nidm:Map
fix: update crypto namespace as agreed in #50
fix: crypto:sha -> crypto:sha512
fix: add atCoordinate space attribute in ExcursionSet
fix: pFWER => pValueFWER
fix: nidm namespace
fix: ClusterStatistic -> Cluster and PeakStatistic -> Peak
fix: ReselsPerVoxelMap is in spm namespace
fix: nidm:ModelFitting -> nidm:ModelParametersEstimation
fix: ReselsPerVoxelMap is in spm namespace