added #root? #leaf? and #child? methods to Page Drop
use the cached Smithy::Site instead
Added a 'section' option to the nav
Introduced a #publishable column to PageContent and only show publishable content in the website. This avoids the error after a PageContent record is created and before the ContentBlock is attached to it on #update
some version adjustments
further instructions on admin management
devise error fix for spec running