AMIGAOS: Make use of the new drawer icon

On AmigaOS the user can customize every icon including drawers.

This is a customized drawer icon for ScummVM with the original "S"
scaled on top of it.

This icon may change with further revisions of AmigaOS4 (if the
default icon images change).
SWORD1: Add missing update of screen parameters when loading game from GMM

This fixes bug #6728 (crash when loading game from GMM in bull's
head scene). I am not sure the call to Logic::Engine is necessary, but
that way the same sequence of calls is done when restoring a game
from the original GUI and when restoring from GMM.
NEWS: Mention fix of crash in BS1 when loading a game from the GMM
CGE2: Remove fallback detection for English translation.
MADS: Remove unused variables.
CGE: Remove fallback detection.
Merge pull request #501 from raziel-/patch-3

AMIGAOS: Add and make use of a new drawer icon