[deltacloud-devel] Add Identi.ca as a news source for the site

[Tomas Sedovic]

This patch hooks the deltacloud.org site to our Identi.ca news feed
(http://identi.ca/deltacloud).

Since the feed is empty at the moment, change the `user` variable in
`deltacloud.org/lib/news.rb:16` to other (more prolific) Identi.ca user to
test this.