Add links to forum logs

Lots of people have been asking for these. The default log formatter does
not allow links (!!!!), so I have had to implement my own log formatter in
order to show links. The links use internal links when they can, although
they have to use the normally external link syntax of [url text] in some
places.

Bumped version no.

Change-Id: Ib9c6b232dde68f7bccfdfdec97daac574a40cf50
Merge "Add links to forum logs"