As far as I'm concerned, I would prefer to have each plugin in a different repo and (so being different maven project).
I think it's more clear and make the maintenance of the project easier. And I have the feeling it's easier for releasing. 

So if we do that, we have to create another public github repo for this plugin and rename this current repo as GQuery-Tooltip-Plugin

@christiangoudreau what do you think/prefer ?