Made the game follow standards for the settings and the save games.

I also created two functions copying the files from their old locations
so people won't worry about it.
I tested this both on windows and linux, OSX wasn't actually
impacted by the change.

I also made the game setup the stting and user data path only once,
not on each requests.

On unices, now the save games will be at ~/.local/share/valyriatear
and the settings in ~/.config/valyriatear

And on windows, both will in:
Documents and Settings\User\Application Data\ValyriaTear

Closes #9