Added 'Save As' option on the dive list menu.

This adds the 'Save As' option on the dive list,
very straigth forward, just simple and beauty.
tested and working.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Some adjustments to "save as"

The popup menu entries should be all lowercase.
Also we should handle this the same as regular save and open when it comes
to remembering the last path.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Remove the "in C" part about Subsurface's description

It's not written purely in C anymore. There's quite a lot of C++ now,
not to mention Perl, XSLT, shell scripting, etc. :-)

Signed-off-by: Thiago Macieira <thiago@macieira.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>