Also added QSetting value names to common.h
Work is halfway on both translations and .ui files.
I added a very quick and rough finnish translation.
The program now requires the translation files to be created before running
that can be done with lrelease gui.pro.
To compile the whole GUI one must do the following
cd gui
qmake
lrelease gui.pro
make
Add "Authors" and "License" items to the Help-menu. When selected, these items open simple text file viewer dialog. The AUTHORS and COPYING files are embedded to the executable and shown in the dialog.