Rogo 7.4.5

The third community release of Rogo has been released with fixes for:

ROGO-3201 Fix array_merge warning on paper start page
ROGO-3161 Stop 404 errors when students press Finish in papers
ROGO-3185 Do not delete extra time settings when users customise their accessibility settings
ROGO-3171 Fix alignment of options in Dichotomous questions