Menu for screen resolutions

[Corsaire]

In version 0.3.0, you have to type manually the pixel values for your resolution (horizontal and vertical numbers), this could be good to use on a non-standard screen (like those vertical displays) or to play in an unusual window, but for most of the people out there it seems unnecessary complicated...

having a menu with available standard resolution should be useful, this resolution chart on wikipedia should be a good start : http://en.wikipedia.org/wiki/Image:Video_Standards.svg

Computer screens are generaly 4:3 and 16:10 (widescreen), but as you can see some resolutions are in other ranges (like 1280*1024)

[zuzuf]

available resolutions can be detected, so I will try to implement that.