[IMC-UK-Features] new topic created

[wietse]

As proposed to the process and features list on 2nd March and later 
amended on 30th March, I have created the Ocean Defence topic:

http://www.indymedia.org.uk/en/topics/oceans/

Some issues that were raised by Shiar and the links to relevant emails 
can be found on the wiki: https://docs.indymedia.org/view/Local/ImcUkAtSea

The UK Topics wiki has also been updated.

Cheers, Wietse