Book content type featured
Pathauto pattern for books
Make main-menu available for books content
Remove book variables from feature to install hook
Save db call when nothing changed
Upon installing c4m_content_book, remove the book body instance and revert the book overrides
Merge commit 'a9c6a7de91590810282ffa92b812927a2c2d4ca3' into feature/CFD-16-create_book_content
Merge branch 'feature/CFD-16-create_book_content' into develop