Merge pull request #4543 from marc1706/ticket/9590-rhea
[ticket/9590] Submit permissions form in chunks -- Rhea version
* marc1706/ticket/9590-rhea:
[ticket/9590] Update permissions with correct permission role
[ticket/9590] Correctly update submit size and replace all forum_id[]
[ticket/9590] Further deduplicate code for form data
[ticket/9590] Preserve selected forums after previous page redirect
[ticket/9590] Support ajax submit of permissions for specific forums
[ticket/9590] Correctly set roles and refresh page using POST
[ticket/9590] Submit permissions form in chunks when using "Apply all"
