Add-ons App for Cloudflare® 1.9.1.1

• Hate pushing quick versions out (sorry)... but a necessary fix for media uploads which are handled slightly differently than other uploaded content (like avatars and attachments).

• Don't assume R2 bucket still exists when getting usage stats for buckets (in case someone deleted the bucket they are currently using)
• Fixed issue when trying to configure R2 for the first time, but Cloudflare account does not have R2 enabled yet
• Added sanity check for external data URL option in case addon somehow got partially (but not fully) installed
• If using guest page caching and purge cache API call fails when a new post is created, edited or deleted, fail silently
• Automatically remove cached account ID if it's invalid (Cloudflare account changed for site)
• Don't assume template method is callable (fixes issue where XenForo addon installation process would give a temporary error when template modifications were enabled but class extensions are not yet)

• Fixed issue where the function to add public subdomain and Cache Rule to an existing R2 bucket wouldn't work
• Removed dependency on third-party library to get list of countries for firewall blocking
• Changed how guest page caching updates tokens in GET request URLs
• Only cache guest pages if the visitor is using the default language and style