Pull request to master

Please eliminate duplicate code in this `if` statement. We can use a ternary to determine the image name.
```
NSString *mapName = (frame.size.height == 480) ? MAP_IMG_I35 : MAP_IMG_I4;
UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:mapName]];
...
```
:bow: