0.18.10

The rule against a stranded word holds in every browser, and the probe checks
it where text-wrap: pretty is not supported.

Fixed

• B-106 holds in every browser, and the probe checks it there. The rule's
  correction was text-wrap: balance and pretty, which Firefox and Safari
  before 26 ignore. jig-site's Versions page did exactly that, passed its
  critique in Chromium, and stranded "back." under 0.6.0 on the owner's phone.
  The correction now adds a fallback: join each block's last two words with a
  non-breaking space, in one function in the template layer. The render probe
  (version 7) also lays the page out without text-wrap: pretty and records
  every block that ends on one word, and jig verdicts refuses a B-106 "ok"
  that it contradicts.