Changes in this commit include:
* The option itself;
* A method of updating the option right after Apply or Ok is pressed
in the settings dialog;
* A new WeatherIconPrivate class to store the methods previously
in WeatherIcons, as well as the settings;
* Improved icon name helper function in METAR parser;
* A few cleanups to the WeatherIcon class.
Signed-off-by: Mavridis Philippe <mavridisf@gmail.com>
The newly added class abstracts away icon names from the main code
and has the ability to fall back to "safer" icon choices so as to
ensure (if possible) icon theme consistency.
Signed-off-by: Mavridis Philippe <mavridisf@gmail.com>
Mavridis Philippe