GFF3: Should we be case-sensitive

[julie-sullivan]

So I checked both so.obo and so-simple.obo and turns out both files do not have an exact match of 'DNaseI_hypersensitive_site' and 'recombination_region' but
1. for type 'DNaseI_hypersensitive_site' -> 'so.obo' and 'so-simple.obo' do have 'DNAseI_hypersensitive_site' here the case of third letter is difference, its capital 'A'.
2. for type 'recombination_region' -> 'so.obo' and 'so-simple.obo' have 'mitotic_recombination_region', 'non_allelic_homologous_recombination_region', etc. 

See intermine/intermine#1828 for details.

This problem has been fixed but there are older files that have the incorrect spelling.

@rachellyne since this is the NCBI only I think we should be case sensitive and this file should fail. What do you think?

[rachellyne]

Yes, I agree.

[julie-sullivan]

this fails as expected.