Dashboard job sorting: just use URL.

urlWithoutWww is unnecessarily clever.
Adds RSS/Atom feeds to dashboard.
feed.rb: Fixes whitespace/indents.
feed.rb: Uses keyword arguments for prepped_messages.
feed.rb: Loops with_object instead of "for".
Merge pull request #46 from chfoo/issues/43-rss

Adds RSS/Atom feeds to dashboard.
Escapes the text in the erubis templates.