Change ontology base

[reality]

currently the fully qualified IRIs are e.g. https://github.com/sap218/ocular-immune-mediated-inflammatory-disease-ontology/blob/master/ontology/ocimido.owl#OCIMIDO_00001

This is a bit long, but more importantly we should change it to a domain we have some control over (the above becomes problematic if github ever design to change their design layout, you want to change your username, transfer it to a github org, github goes out of business etc) - I would recommend:

http://www.bham.ac.uk/OCIMIDO/

We should be able to open a ticket with IT services to get that URL redirected to here. The same goes for the ontologyIRI, as well as just the base defined in the ontology