First version

Though the project was developed several years ago, it's time to share the last stable version. This release includes:

• PNG pictures creating, editing, loading, saving;
• Classes and functions for creating complex random expressions;
• And, of course, usage of both of these to create nice random pictures in HSV color model with connected H and V components.

Specific numbers of expressions levels, their connections may very. So, you easily create completely different pictures!