A little housecleaning
Changed namespace from "Skybrud.Umbraco.Rss" to "Skybrud.Umbraco.RssUtils" to follow package name
Introduced the description property for RSS items

The <description> element for an item seems to be more widely supported than <content:encoded>, so both are now supported in this package.
Added some extra format options when writing the feed
Improved property and method documentation
Update the XML generation to add items after adding extra fields/elements describing the channel
Updated DLL version for new release