* Implement read-only mode
* Use localized string under default language for announce text
* Redirect to user page rather than returning blank 400
* Protect call to `ParseBase64Image`
* Add protections to SlotSettingsPage and nitpick format
* Display the latest announcement (if any) on the landing page
* Fix a kokoism
Accidentally tried to use markdown within the landing page... I'm rather smart aren't I
* Prevent possible XSS
* Separate truncated announcement text and link with "..."
* Apply suggestion from code review
* Add read-only check to /postComment in slot page controller
* Fix inconsistent tabbing
