sets up the RSS feed in HTML as part of the site

feed.php
- takes out the Feed method as it is redundant
- changes hard coded base url to dynamic url so it can be used on the
localhost

recentChanges.php
- changes hard coded base url to dynamic url so it can be used on the
localhost
- sets the cache duration to 0 so that SimplePie always checks for new
edits

elements_model.php
- tidies up what is saved to the updates database

rss.php
- changes hard coded base url to dynamic url so it can be used on the
localhost

rssInHtml
- tidies up what is shown as part of the HTML listing of te RSS feed

main.css
- sets up display for the recentChanges TItle