How do you view a project page in JIRA Software 7.x?
If you choose a project from the list under the "Projects" menu, you are taken to a scrum board associated with it. In 6.4.x, there were links to the projects at the top left of the board or, more popular with our users, you could choose to "Disable New Project Navigation" under the user profile.
In JIRA Software 7.x, there are no links to the project from the board and no option to disable under the user profile.