Update bundle.
Add further general and yearly statistics.
Fix (non-visible) html error in shots#index.
Add "Login" button in pages/start if nowbody is logged in.
Add list of users currently logged in including last access time.
Fix bug in shots#getStatisticsForYear fir the case of an empty Shots table.
Fix bug in short view of PH_VacuumControl.
Update changelog.
Update todo.txt.