edit-comments.php ajax actions need tweaking

[mdawaffe]

1. Deleting comments looks strange; the JS effect is broken.
2. Approving comments from "All comments" page makes them disappear.
3. Approving comments doesn't update all of the "awaiting moderation" counts on the page.

Attached:

1. Replaces jquery.color.js with version from trunk: ​http://dev.jquery.com/browser/trunk/plugins/color/jquery.color.js. This improves RGBA support which is necessary for Safari 3. It's still broken (​http://dev.jquery.com/ticket/2281), but at least it doesn't completely die anymore.
2. Cleans up background-color fades in wp-lists.js.
3. Tidies up wp-lists.js to be more jQuery 1.2 friendly.
4. Clean up wp-list's delete JS. slideUp doesn't work on TRs or other table elements (a known jQuery bug). Use fadeOut for these elements.
5. Approve comments from "All comments" makes them glow and lose their "approve" link (rather than glowing and disappearing completely).
6. Updates comment-count markup and JS so that all comment-count ("awaiting moderation") numbers get incremented/decremented correctly.

[mdawaffe]

jquery.color.js will need to be re-minified if we want to keep doing that.

So far, everything's only been tested in FF 2.

[ryan]

(In [7050]) Ajax tweaks for edit-comments.php from mdawaffe. fixes #6009