Fixed an error in the French translation.
minor, translated string change

change to be easier to translated with a %s.
hangman, fixed support for accentuated letters

The code that also check for accentuated letter in the
word to find was broken.
hangman, added missing word files

The Scottish Gaelic word list was not installed.
Added a French word list.
geography, fixed reference to sri_lanka.ogg.