Version 4.8

This release fixes bugs in old config and improves object editor a little.

-  Fixes in configs:
  Chip & Dale (Layout, objects, view groups)
  Duck Tales 2, Chip & Dale 2 (fix blocks attributes)
  Jungle Book (levels 7-8)
  Flintstones: Rescue of Dino and Hoppy (U-region, fix object editor)
  Chip & Dale 2 (view groups)
- Configs:
  Adventure in the Magic Kingdoom (maps and levels).
  Mission Impossible [NES] - screen/blocks for level 1
  Captain America [NES] - screen/blocks for level 2
- Object Editor:
  Right click for selection
  "Del" for removing selected objects
  Axis for blocks and screens
  View groups
  Small fixes