Version 1.1 major update

Many things have changed for the better with the new 1.1 version. The code has been cleaned up and optimized. Bugs have been removed.

Important changes include the syntax of functions. The functions will work much more like your standard BASIC now.

Also, the image handling commands have been improved. There's now loadimage, drawimage, and freeimage commands.

The math command, round has been added. The rnd function was fixed to work like QBasic.

More example games have been added including Mini Mastermind and Nonogram!

The examples and documentation have all been updated.