#9 Verically flipped screenshots

android/src/main/java/cz/nic/tablexia/android/AndroidLauncher.java

@@ -45,7 +45,7 @@ public class AndroidLauncher extends AndroidApplication {
                     Bitmap sb = Bitmap.createBitmap(screen, width, height, Bitmap.Config.RGB_565);
                     // flip bitmap vertically
                     Matrix matrixMirror = new Matrix();
-                    matrixMirror.preScale(-1.0f, 1.0f);
+                    matrixMirror.preScale(1.0f, -1.0f);
                     sb = Bitmap.createBitmap(sb, 0, 0, sb.getWidth(), sb.getHeight(), matrixMirror, false);
                     // overvrite file
                     FileOutputStream fOut = new FileOutputStream(file);