[Add] Allow to set the original image at runtime.
[Fix] Check the user interface orientation.

Problem with `UINavigationController`.
[Update] Better place to hide the status bar and the navigation bar.
[Add] Ability to specify the path and the rectangle for the mask.

Resolves #7.
Resolves half of #10.
[Add] Ability to specify a custom color of the layer with the mask.

Resolves #10.
[Update] README.

DataSource.
Version bump (0.4.0)