need to add changing BufferedImage reference between ImageHolder and PreviewOmageHolder, to many time spent on reading image from file system
added 'x' function
added 'd' function
added save settings options
added imageBuffer, now image reading only one in PrevImageHolder
Patch for a more economical use of memory for large photos
*added max BufferedImage size in imageBuffer, (hard coded on 2000*3000)
Add functionality
* add marking file like promo