v0.15.4: fix blurb inheritance/autofill

v0.15.3: quieter logs, page-level style overrides

v0.15.2: pyspellchecker 0.7.0 compatibility

v0.15.1: fix Windows PDF bug

v0.15.0: OpenAPI spec fixes, tail formula, etc.

0.14.5: fix OpenAPI parsing with current Jinja

v0.14.4: Fix watch mode, missing img src bugs & update CSS

v0.14.3: fix Jinja compat, style checker improvements

v0.14.2: bug fixes for templates w/ virtual pages

v0.14.1: Fix Python 3.5 compat