Reworked the save methods on Display. You can now save to jpg, png, eps or pdf files. The methods to use are :
save(filename), saveAsEPS(filename), saveAsPNG(filename), saveAsJPG(filename) and saveAsPDF(filename) : These methods will save the full image, including annotations.
saveCurrentView(filename), saveCurrentViewAsEPS(filename), saveCurrentViewAsPNG(filename), saveCurrentViewAsJPG(filename) and saveCurrentViewAsPDF(filename) : These methods will save the current view of the image, including annotations and axes.