User manual: update

1) Text about libdivecomputer log and dump files
2) Text about coordinate formats acceptable
3) Text about CSV import
4) Minor reorganisation of TOC

Signed-off-by: Willem Ferguson <willemferguson@zoology.up.ac.za>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
UDDF export: save events occurring between samples

UDDF export saved events only if they occurred at exactly same time as a
profile sample. This patch will include events between samples as well.
This assumes that profile samples are recorded in even intervals.

Fixes #385

Signed-off-by: Miika Turkia <miika.turkia@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Don't reset panels while editing a dive

MANUALLY_ADDED_DIVE is a different flavor of ADD mode (in both cases we
are in "planner mode"), so bail out for that as well.

See #379

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

Use QStringList::contains instead of iterating the list.

Signed-off-by: Patrick Valsecchi <patrick@thus.ch>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Display warning that dives won't be downloaded when enabling libdc dump

The warning is only shown once per session.

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