Tcl wrapper for libsoldout, a markdown parser library

 tclsoldout extends Tcl providing new commands to parse and process
 markdown text. Tclsoldout current version creates 2 new commands
 .
    + ::soldout::mk2html - markdown to HTML processor
    + ::soldout::mk2xhtml - markdown to XHTML processor
 .
 tclsoldout also provides ::soldout::escape_string, its own utility
 to convert SGML characters into their HTML entities.