Update rssfeed.md

add $allowed_actions
Merge pull request #2544 from cieszak/patch-2

Update rssfeed.md
$i18nScriptDirection template placeholder

Optional RTL support based on Zend_Locale data.
Not set in CMS by default because it breaks the layout
quite badly without deep CSS modifications.
Merge pull request #2532 from chillu/pulls/i18n-dir

$i18nLocaleDirection template placeholder
Fallback for i18n::get_script_direction()