User manual: Add text as well as figures.

This patch updates the user manual in the following respects:
1) Add section dealing with modifying the categories of information
   shown in the Dive List. (A figure added)
2) Add section on filtering the Dive Listfor a particulr sive site,
   using Ctl-F.
3) Add section describing the addition of bookmarks
   (a figure added)
4) Two sentences dealing with the 30-minute time limit for
   including photos onto the dive profile (dives > 30min of
   the dive are not shown).
5) A few small changes, mostly typos.

Signed-off-by: Willem Ferguson <willemferguson@zoology.up.ac.za>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Latest translations

As always, I am not the author (except for the German translation)

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
User manual: update generated html files

This once again just updates the html files for people who build from
source but don't have asciidoc.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Getting ready for Beta 3

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>