started refactoring to integrate contentr with HSAA
fixed reordering of paragraphs
remove image field from html paragraph because we have a mediapool in hsaa
added preview mode for pages
remove WysiwygParagraph from core
make `contentr` an isolated engine
publish and unpublish pages
added tabulatr, ancestry and bsat
added content_block and page_type
added page_type, content_block controller and views
adds index action to Admin::ContentBlock::ParagraphsController
adds FIXME warning for using last Site as a parent in contentrable
improves content_blocks form
add and show of content block usage
remove content block usage, add Contentr::ContentBlockParagraph instead
bump bootstrap sass
adds content_block_to_display to paragraph to be able to track usage
adds nav tree
adds grouped_nav_points for possible later usage
make nav_points editable