Began Work on Chain Messages, 35% done

Started to create a system whereby users can create a 'chain' of
messages, i.e.  a sequence of captions, text and images that tell a
story within a single msg box. So far the front end is nearly complete,
with around about 15% left to do on that side before beginning on the
server side handling of the chains.

On top of that there were some minor style tweaks including a
(hopefully) improved layout for people using smaller screen resolutions.
Of course, mobile versions are not in the pipe-line until I can get some
people to join me.

Also changed the favicon. Pretty good weekend overall.