webupload-ie8多按钮无法上传缺陷

//修改前：
	/**
     * @fileOverview Blob Html实现
     */
    define('runtime/flash/blob',[
        'runtime/flash/runtime',
        'lib/blob'
    ], function( FlashRuntime, Blob ) {
    
        return FlashRuntime.register( 'Blob', {
            slice: function( start, end ) {
                var blob = this.flashExec( 'Blob', 'slice', start, end );
    
                return new Blob( blob.uid, blob );
            }
        });
    });
	
//修改后：
	/**
     * @fileOverview Blob Html实现
     */
    define('runtime/flash/blob',[
        'runtime/flash/runtime',
        'lib/blob'
    ], function( FlashRuntime, Blob ) {
    
        return FlashRuntime.register( 'Blob', {
            slice: function( start, end ) {
                var blob = this.flashExec( 'Blob', 'slice', start, end );
				
				//参数传递错误应该传blob.ruid，而不是blob.uid
                return new Blob( blob.ruid, blob ); 
            }
        });
    });