Navigator remains too long at "Pending..." [was #7553]
With or without slow network, the Navigator takes too long to startup, sometimes it even hangs. This is because all TextGridObjects belonging to a project are instantiated and TextGridProject.java enforces this when one wants to instantiate a TextGridProject. But this is not needed in order to display just the list of projects, it is only needed when a user decides to click on a project and show its objects.
This behaviour leads to other problems, such that e.g. the User/Role Management will not work as there is no chance to select any project.