Cardinality Handle

[Lionel Déglise]

Hi,

Gravizo is a very useful tool. Thanks.

Cardinalty on relations seems not working. Image generation fails on test URL or undirect.

However the same puml works great on plantuml.

dataexchange.puml.txt

[Hugo Freire Gil]

thanks @lionel-deglise, I will take a look

[Hugo Freire Gil]

Fixed