v0.3.0: going out with style

breaking changes

• styled templates now execute with the booklit.Styled itself as ., with
  the unfortunate outcome being that any existing templates will cause an
  infinite loop upon rendering. make sure to change them all to .Content for
  the previous behavior!

new features

• you can now attach other booklit.Content to a booklit.Styled via a
  Partials field. this allows for templates to be executed with multiple
  pieces of content, e.g. a Title partial to accompany the primary content.

• when \styled is set on a section, it will also result in checking for a
  (style name)-page.tmpl in place of the normal page.tmpl when the section
  is rendered at the top level

fixes

• improved error propagation when using plugins and/or running the server