remove help section if images not allowed

retriever/retriever.php

@@ -831,6 +831,7 @@ function retriever_content($a) {
 		$template = Renderer::getMarkupTemplate('/help.tpl', 'addon/retriever/');
 		$a->page['content'] .= Renderer::replaceMacros($template, array(
 								       '$config' => $a->getBaseUrl . '/settings/addon',
+								       '$allow_images' => Config::get('retriever', 'allow_images'),
 								       '$feeds' => $feeds));
 		return;
 	}

retriever/templates/help.tpl

@@ -131,6 +131,7 @@ fails, the plugin will keep trying at progressively longer intervals
 for up to a month, in case the website is temporarily overloaded or
 the network is down.
 </p>
+{{if $allow_images}}
 <h3>Retrieving Images</h3>
 <p>
 Retriever can also optionally download images and store them in the
@@ -140,6 +141,7 @@ an RSS feed or not.  Go to the "Settings" page and
 click <a href="$config">"Plugin settings"</a>.  Then check the "All
 Photos" box in the "Retriever Settings" section and click "Submit".
 </p>
+{{/if}}
 <h2>Configure Feeds:</h2>
 <div>
 {{foreach $feeds as $feed}}