color mix, use full string message for colors

In many languages colors have gender and cannot be
translated out of their context.
Disambiguation of translation is now handled with the Q_ macro.

Added support for string disambiguation in shapegame tooltips.
Now in tooltip if the string is marked as "Asia|Georgia",
only the Georgia part will be displayed, the 'Asia' being
usefull for translators.

Added translation of USA states.
Improved message string for 'default'
Minor, replaced fixed font size to a GCompris one.
Separated scores into two strings for correct positioning.

Repositioned board bar.
minor, fixed text positioning
Replaced hardcoded font with fontset font
Implemented multigraph support
Gletters: slowed down levels for Scottish Gaelic
Using skin fontsets now
Centered font on weights and adjusted size
Replaced hard coded fonts with fontset fonts