Uninitialized values and memory leaks

[Patrick Valsecchi]

Hi,

I ran subsurface with valgrind and it found a few errors. The leaks
are mainly a one time thing, but I needed to fix them to reduce the
noise and find the real bad leaks.

I've left one leak with a FIXME comment. This one is a bit tough. It 
would be way easier if the dive structures were using QString instead of 
char*. What is the plan with the GTK UI? If it is going to be dropped, I 
suggest to switch to QString, QList and QMap instead all all those C types.

Please have a look at the patch in attachment (bigger than my previous 
ones).

I think my next "mission" is to figure out why there is only the graph 
in the printouts when the screenshot [1] shows some text and a table 
with some data below them. Unless it's a known problem and somebody 
already works on that?

CU

[1] 
http://subsurface.hohndel.org/wp-content/uploads/2011/10/Screen-shot-2013-02-24-at-12.33.59-PM.png

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