Refined search results formatting:
* CDS now modelled like other sequenceFeatures, creating it's own separate specification overwrote the formatting it inherited
* sequenceFeature.length now represented as Length (nt)
* bioentity.primaryIdentifier is now Wormbase ID
* removed all default widgets, no active widgets
* renamed the linkout ID from GeneRedirect to WBRedirect. code looks  better, no functional or cosmetic change
* strain now inherits from bioentity not sequencefeature