Display dive duration in dive list in whole minutes

The whole "duration in seconds" is being way too OCD about the
information, and just makes it harder to read.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Add Poseidon example CSV and TXT files to the dives directory

Two files are added to the dived directory.

Signed-off-by: willem ferguson <willemferguson@zoology.up.ac.za>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Revert "Divelist: make the column headers for units left aligned"

This reverts commit d5f19c43c925468f363f0e509816df724f930db9.

With the changes to the headers in commit 3515ad71c159 ("Divelist: remove
units from header, add tooltip") I think this isn't needed anymore and
actually reverting it creates a cleaner look.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Changed tissue icon on profile graph.

The previous icon was of a bird that didn't seem to make sense. This
icon looks like the tissue graph and should be more intuitive.

Signed-off-by: John Van Ostrand <john@vanostrand.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>