first pass at a new script for loading GO annotations including ancestors
working version of ontology unroller
remove existing member_xrefs before starting
Update load_go_associations.pl
Merge branch 'master' of https://github.com/danstaines/ensembl-compara into danstaines-master

* 'master' of https://github.com/danstaines/ensembl-compara:
  Update load_go_associations.pl
  remove existing member_xrefs before starting
  working version of ontology unroller
  first pass at a new script for loading GO annotations including ancestors

Conflicts:
	modules/Bio/EnsEMBL/Compara/DBSQL/XrefAssociationAdaptor.pm