* removed some vistigial code that would
  cause incorrect fullbright recognition

* problems caused when moving directory onto
  itself or one of its children

* check for full brights on mip making

* file association modification

* capture return key & delete key when renaming

* crash when renaming a file twice

* the window is no longer created bigger than the
  screen which could happen if you ran the program
  at a smaller resolution than you once did

* F5 accelerator for update views

* only remaps a pcx palette to the default palette
  if they are different. This helps when dealing
  with full brights.