Setting organization and program name in main() allows us to
cleanup Settings class usage. As we don't need to keep using the
one instance of Settings but can create new Settings class
whenever we need to access settings. According to the Qt
documentation creating Settings class is fast.
This commit modifies and registers ErrorItem as proper metatype so it
can be used with Qt signals. Then sending Error-signals is refactored
so that ErrorItem instances are sent instead of several different
arguments that already contained couple of lists.
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
