AustPost Surcharge Packaging Cost and Weight

Adding option to set average packaging cost and weight surcharges to
shipping quotes in australia post shipping module
Added RFC_822 formatting to pubDate
ISO Code price to google product feed
Added default name if no title on rss feed
Fixed description field on rss feed
RSS feed base url correction
Store paypal express message in variable $message_html instead of echo

Allows for formatting of the message
Added Merchant Warrior Shipping Module