			      CHANGES IN markdown VERSION 0.4

NEW FEATURES

  o added support for post-processing HTML using smartypants filter

  o added optional support for rendering a table of contents

MAJOR CHANGES

  o changed exported C functions to use an rmd_ prefix (eliminating
    potential symbol conflicts with other packages)

  o changed default html rendering options to use_xhtml, hard_wrap,
    safelink, and smartypants

BUG FIXES

  o eliminated name collision with render_markdown function in knitr


