[Planner] gas consumption calculation broken after 5b5a25d.

[Dirk Hohndel]

On Sat, Jun 28, 2014 at 06:41:32AM -0700, Dirk Hohndel wrote:
> Let's wait what Robert has to say. I'm trying to improve the idiotic way
> we determine the start of the planned dive (which is based on even more
> idiotic code that I believe I originially wrote).

Just pushed out the changes to the planner that give us a sane way to
enter start date / time with reasonable defaults: the dive starts an hour
from now, but at least an hour after the last dive ends; this way if you
plan multiple dives, you'll get an hour surface interval between them.

/D