Added gif_settings as Namespace
Added gif_settings with limited default values
Added ubuntu light and regular fonts.

These are free to redistribute, provided the LICENSE file is
redistributed with them.

See the LICENSE file for more details.
Added handling of colonial nations.

This involves both the creation of country objects from the save file,
as well as determining the right colour to use, based on what nation
they are a subject of.
Colonial nations are now loaded from the save.
Added GIF creation option.

This is currently quite rudimentary.

Further work is needed, especially by removing some of the magic
numbers.