Major fixes to the feed_item creation process.
A full pass at a OPML subscribe module.

Should act as a prototype for other feed type modules.
Making the feeds create function return ID

Like wp_insert_post.
Adjusting check to correct usage.
Setting up OPML subscribe to create feeds.
Setting time limit.
Recognize a set rss-quick title
Errant paren
Simpler method.
Fixes to the insert process.
Simplify feed insert process.
Force url to be a string.
Merge remote-tracking branch 'origin/master' into 2.4.x
Resolves #174 with archive.
Testing required, but should resolve #175
Final update for new delete process.

Resolves #175
New breakpoints, resolves #179
Setting up for template-tags
Establishing the metadata structure and functions.
More descriptive meta structure

Based on Library of Congress Digital Repository meta table at
http://www.loc.gov/standards/metable.html