Log Message:
textproc/ruby-html-pipeline: add pacakge 2.14.2

It is required for forthcoming redmine50 package.

HTML::Pipeline

HTML processing filters and utilities.  This module includes a small
framework for defining DOM based content filters and applying them to user
provided content.

This project was started at GitHub.  While GitHub still uses a similar
design and pattern for rendering content, this gem should be considered
standalone and independent from GitHub.