Previously optima.init imported the projects file as optima._project so that it wouldn't get confused with the class optima.Project.
But this causes errors when unpickling for some reason, so instead we import the projects file as optima.project and the class is either optima.Project or optima.project.Project
Previously optima.init imported the projects file as optima._project so that it wouldn't get confused with the class optima.Project.
But this causes errors when unpickling for some reason, so instead we import the projects file as optima.project and the class is either optima.Project or optima.project.Project
Similarly for all the other files