Pressbooks 5.5.4 and Pressbooks Stats 1.6.2

Originally published at: https://pressbooks.org/blog/2018/10/24/pressbooks-5-5-4-and-pressbooks-stats-1-6-2/

Minor updates to Pressbooks and Pressbooks Stats are now available, with fixes for a book admin permissions issue that prevented access to an installed plugin and performance improvements for stats queries.