Added Subpage.is_sticky. Subpage.is_public takes role of Subpage.is_everywhere.
Added Subpage.is_sticky. Subpage.is_public takes role of Subpage.is_everywhere.

zielmicha/satori,zielmicha/satori,zielmicha/satori,zielmicha/satori,zielmicha/satori,zielmicha/satori,zielmicha/satori