Merge pull request #1147 from WormBase/staging

Staging - WS237
Development Freeze for WS237
Update Transcript.pm
Update Cds.pm

Added primary gene models to GBrowse track and changed "Confirmed gene" to "WormBase CDS" as the former was a little misleading.
Merge pull request #1236 from WormBase/master

Merge @epaule's commits back into Staging