Changes:

1) Made links consistent (it now does not include individual= if it was going
to be 0 or blank)

2) Made blocks consistent (they now display the same, also fixed a minor
possible bug relating to title and the icon)

3) Made the feedicon not look absolutely horrific (it made the block title go
onto two lines)

4) Bug: the feed's 'blog url' link did not correctly add the individual id when
using an individual blog

5) Bug: the feed did not do proper security check for separate groups blogs
(any user was allowed to view all-groups view)

In fixing bug 5 I also resolved the problem with the main feed display, but the
comments feed was still not working.

6) Bug: The comments SQL query failed on the condition ORDER BY MAX(timeposted,
timeupdated) or something like that, because 'MAX' doesn't work that way; we
aren't sure if this used to work and failed in 8.3, or what. I changed it to
GREATEST which works in both Postgres (8.x) and MySQL (current).

7) Bug: the check for individual permissions used the default user (which is
always nobody/guest for the feed requests) instead of having a parameter.

8) Bug: the comments feeds show the author name as the author of the post, not
the author of the comment.

OU bug 10636.