Improved exceptions

Many exceptions got an improvement due to changed class or description or details it is providing.
Is not complete, needs to be done in patches in the regions, where it is needed, since some are just
swallowed.

Removed total usage of pure RuntimeExceptions to 0.

src/main/java/appeng/entity/EntityIds.java

@@ -44,6 +44,6 @@ public final class EntityIds
 		if( droppedEntity == EntityGrowingCrystal.class )
 			return GROWING_CRYSTAL;
 
-		throw new RuntimeException( "Missing entity id: " + droppedEntity.getName() );
+		throw new IllegalStateException( "Missing entity id: " + droppedEntity.getName() );
 	}
 }