[wp-hackers] 915: Use index.php for feed links instead of wp-*.php

[Ryan Boren]

http://mosquito.wordpress.org/view.php?id=915

I attached a patch to the bug that removes wp-rss2.php, wp-atom.php,
etc. from feed links and references index.php with a feed= argument
instead.

Before:

http://weblog/wp/wp-rss2.php

After:

http://weblog/?feed=rss2

This will allow us to deprecate the wp-xxx.php feed files.

I also added some *_feed_link filters where appropriate.

Ryan