New in Skribilo 0.9.0 (compared to Skribe 1.2d)

  * New engine: Lout (see http://lout.sf.net/).

  * New package `eq' for equation formatting.

  * New markups: `~', `breakable-space', `numref',
    `!lout', `lout-illustration'.

  * Extended markups:

     - `footnote' now takes a `:label' option.
     - `document' now takes a `:keywords' option.