Ignore @private classes defined in unresolved namespaces in class list.
Ignore @private classes defined in unresolved namespaces in class list.

Closes gh-103

lsegal/yard,thomthom/yard,travis-repos/yard,ohai/yard,iankronquist/yard,herosky/yard,alexdowad/yard,thomthom/yard,iankronquist/yard,lsegal/yard,ohai/yard,jreinert/yard,lsegal/yard,herosky/yard,herosky/yard,jreinert/yard,amclain/yard,amclain/yard,amclain/yard,alexdowad/yard,ohai/yard,travis-repos/yard,jreinert/yard,iankronquist/yard,thomthom/yard,alexdowad/yard