request for review and testing: default file name

[Dirk Hohndel]

Mikko Rasa <tdb at tdb.fi> writes:
>
> An strace reveals that it's saving over the imported file.  For me, it's 
> not even creating any directories in this case.
>
> If I import dives from my dive computer instead, subsurface creates the 
> directory ~/subsurface with 0600 permissions, and then fails to save the 
> file because the directory lacks the execute permission bit.  The 
> failure is not communicated to the user in any way.

Both of these bugs are fixed in the latest code in that branch.

/D