bump JPEG quality from 98->100 and add a comment

Program.cs

@@ -222,6 +222,7 @@ public class Photo {
   }
 
   public void SaveAsJpeg(string outputRoot, JpegEncoder encoder) {
+    // FIXME: if nothing was changed about this image, just copy the file bytes directly, possibly with metadata changed?
     string directory = System.IO.Path.Combine(
         outputRoot,
         String.Format("{0:D4}", DateTimeOriginal.Year),
@@ -886,7 +887,7 @@ public class Game : GameWindow {
   // To find the JPEG compression level of a file from the command line:
   // $ identify -verbose image.jpg | grep Quality:
   private void ExportPhotos() {
-    JpegEncoder encoder = new JpegEncoder() { Quality = 98 };
+    JpegEncoder encoder = new JpegEncoder() { Quality = 100 };
     string outputRoot = @"c:\users\colin\desktop\totte-output";
     foreach (Photo p in photos) {
       p.SaveAsJpeg(outputRoot, encoder);