Issue 005: Create initial Ant build script for PDF and HTML

Initial Ant build script template to create PDF and HTML outputs for a
product using the default styles from the DITA Open Toolkit.

The folder structure for the output is:
  user home directory
    output
      product-name
        print (PDF file)
        web (HTML files)

Instructions on pre-requisities and how to use incldued in the source
file.