Part of one fix, not three. v1.1.1, v1.1.2 and v1.1.3 are a single
bug — deleting a book did not actually remove it — found in three layers and,
in hindsight, released far too eagerly. They should have been one version.
v1.1.3 is the
complete fix; upgrade straight to it. The tags and images are left in place
because they are already published and pulled.
Full Changelog: v1.1.1...v1.1.2