Update API formatting for jsdoc generation.
Update API formatting for jsdoc generation.

Updates the formatting of the API to enable generation of documentation from the
api.js file.  No changes to the API are being made.

Progress on #183.

youtube/spfjs,theanh/spfjs,theanh/spfjs,nicksay/spfjs,theanh/spfjs,scrapp-uk/spfjs,youtube/spfjs,nicksay/spfjs,scrapp-uk/spfjs,youtube/spfjs,theanh/spfjs,tchiotludo/spfjs,scrapp-uk/spfjs,tchiotludo/spfjs,tchiotludo/spfjs,youtube/spfjs,scrapp-uk/spfjs,nicksay/spfjs,nicksay/spfjs,theanh/spfjs,scrapp-uk/spfjs,tchiotludo/spfjs,nicksay/spfjs,tchiotludo/spfjs,youtube/spfjs