Merge pull request #119 from cmaumet/scriptOwlExamplesSync

Merge: Automatic testing for consistency between nidm-results.owl and examples
move turtle retrieval to a separate class that will be used by all tests classes
consistency checking in a separate function
ttl_from_readme as a parameter defined in TestCommons
move more consistency checking to CheckConsistency class
update error message display and logging
serialisations exported using SPM NIDM export must be located in "test/spmexport"
update travis config file to run all tests found in nidm/nidm-results/test
RELPATH needs to be defined
Update SPM export for example 001
Update error messages
Update turtle file with latest export
nidm:worldCoordinateSystem -> nidm:inWorldCoordinateSystem
nidm:alternativeHypothesis -> nidm:hasAlternativeHypothesis
nidm:alternativeHypothesis has range nidm:OneTailedTest / nidm:TwoTailedTest
nidm:statisticType is an ObjectProperty
Re-use statistic, t-statistic and f-statistic from STATO
Create nidm:ZStatistic as a subclass of STATO "statistic"
Throw error in undefined range for ObjectProperty
Test based on instant conversion