See implementation from @dbs in #146
Instead of http://schema.org/namedPosition (to be superceded) on http://schema.org/OrganizationRole we will have roleName on Role more generally.
From @dbs, """Per http://lists.w3.org/Archives/Public/public-vocabs/2014Sep/0331.html, offer a generic property on Role that can be used by sub-types of role to identify the role being played, rather than propagating more properties.""".
Documented roleName change.
Queued for review in sdo-venkman http://sdo-venkman.appspot.com/docs/releases.html#roleName