Merge branch 'javier/webcomment-improvements-new'
- javier/webcomment-improvements-new: WebComment: comment moderation and improvements WebAccess: new API acc_get_authorized_emails()
- Amendments done during merge:
- Added key for cmtRECORDCOMMENT.status.
- Enriched 'update-v0.99.1-tables'.
- Reverted CFG_WEBCOMMENT_USE_RICH_TEXT_EDITOR to False, as it used to be.
- Set default comment moderator (and alert engine) to cds.support@cern.ch.
- Fixed multiple email sending problem and get_collection_moderators() return type (string/list/set).