Log message:
Update hikidoc to 0.0.5.

!! Changes 0.0.5 from 0.0.4: 2010-08-26

* fix a bug: strings after non-WikiName expression are ignored
* new text decoration ``monospaced text``
* fix rake failure with Hoe 1.9.0 or later
* add syntax highlighting with google-code-prettify

Log message:
Import ruby-hikidoc-0.0.4 as textproc/ruby-hikidoc.

'HikiDoc' is a text-to-HTML conversion tool for web writers.  HikiDoc allows you
to write using an easy-to-read, easy-to-write plain text format, then convert it
to structurally valid HTML (or XHTML).