Toffoli and cNot not correctly represented

[javabean68]

Hi,

really nice library and book :)

I have only a question: the not gate and the toffoli one are shown in a strange :) way:

Any hint? Many thanks in advance Regards Fabio

[johanvos]

This is a bug indeed. Thanks for reporting, I'll have a look.

[johanvos]

Should be fixed by #30