fixed filename and hgnc id bug
fixed ccds prefix, added underscore for gene_symbol predicate, removed two blank spaces in property description
removed rgd prefix
fixed class declaration
Merge branch 'release3' of github.com:micheldumontier/bio2rdf-scripts into hgnc_hotfix

Conflicts:
	hgnc/hgnc.php
Merge pull request #291 from micheldumontier/hgnc_hotfix

HGNC hotfix