Add Davide and Guillaume to the authors, update the in.relation.to urls
Add Davide and Guillaume to the authors, update the in.relation.to urls

DavideD/hibernate-ogm-contrib,hibernate/hibernate-ogm,DavideD/hibernate-ogm-cassandra,Sanne/hibernate-ogm,DavideD/hibernate-ogm,DavideD/hibernate-ogm-cassandra,DavideD/hibernate-ogm,schernolyas/hibernate-ogm,DavideD/hibernate-ogm,hibernate/hibernate-ogm,hibernate/hibernate-ogm,Sanne/hibernate-ogm,Sanne/hibernate-ogm,DavideD/hibernate-ogm,Sanne/hibernate-ogm,DavideD/hibernate-ogm-contrib,DavideD/hibernate-ogm-contrib,schernolyas/hibernate-ogm,hibernate/hibernate-ogm,schernolyas/hibernate-ogm,DavideD/hibernate-ogm-cassandra