Finished feed content summarization.

Renamed feed retreival and parsing tool.

Added page content extraction and HTML cleaning functions.

Switched to simple check for domain extension.

Added some fancy fallback options to handle requests for feeds that are not urls, also added caching so we don't have to look up the same feed URI more than once in a session.

Finished basic functions to find RSS feed uri and pull the feed.

Feed finder function done.

Refactored interface HTML elements and tool functions.