map preview generation reworked like nemo suggested (he was right, it's quickier in this way)
add some rounding image capabilities for more professional look
//
// UIImageExtra.h
// HedgewarsMobile
//
// Created by Vittorio on 08/04/10.
// Copyright 2010 __MyCompanyName__. All rights reserved.
//
#import <Foundation/Foundation.h>
@interface UIImage (extra)
-(UIImage *)scaleToSize:(CGSize) size;
-(UIImage *)mergeWith:(UIImage *)secondImage atPoint:(CGPoint) secondImagePoint;
-(UIImage *)mergeWith:(UIImage *)secondImage atPoint:(CGPoint) secondImagePoint atSize:(CGSize) resultingSize;
-(id) initWithContentsOfFile:(NSString *)path andCutAt:(CGRect) rect;
-(UIImage *)convertToGrayScale;
-(UIImage *)maskImageWith:(UIImage *)maskImage;
-(UIImage *)makeRoundCornersOfSize:(CGSize) sizewh;
@end