How to install Pinta 1.4 in Ubuntu 11.10/12.04/12.10

Pinta is a free, open source drawing/editing program based on Paint.NET. Its goal is to provide users with a simple yet powerful way to draw and manipulate images on Linux, Mac, and Windows.

New Features in Pinta 1.4

Magic Wand tool selection modes (Union, Exclude, Xor, and Intersect).
Layer blend modes.
Reduced memory usage in the Open Images Pad .
Significantly reduced memory usage for