Update schema.org URLs

Fix #709

qa-include/app/format.php

@@ -327,10 +327,10 @@ function qa_post_html_fields($post, $userid, $cookieid, $usershtml, $dummy, $opt
 
 	if ($microdata) {
 		if ($isanswer) {
-			$fields['tags'] .= ' itemprop="suggestedAnswer' . ($isselected ? ' acceptedAnswer' : '') . '" itemscope itemtype="http://schema.org/Answer"';
+			$fields['tags'] .= ' itemprop="suggestedAnswer' . ($isselected ? ' acceptedAnswer' : '') . '" itemscope itemtype="https://schema.org/Answer"';
 		}
 		if ($iscomment) {
-			$fields['tags'] .= ' itemscope itemtype="http://schema.org/Comment"';
+			$fields['tags'] .= ' itemscope itemtype="https://schema.org/Comment"';
 		}
 	}
 
@@ -763,7 +763,7 @@ function qa_who_to_html($isbyuser, $postuserid, $usershtml, $ip = null, $microda
 
 		if ($microdata) {
 			// duplicate HTML from qa_get_one_user_html()
-			$whohtml = '<span itemprop="author" itemscope itemtype="http://schema.org/Person"><span itemprop="name">' . $whohtml . '</span></span>';
+			$whohtml = '<span itemprop="author" itemscope itemtype="https://schema.org/Person"><span itemprop="name">' . $whohtml . '</span></span>';
 		}
 
 		if (isset($ip))

qa-include/app/users.php

@@ -572,7 +572,7 @@ if (QA_FINAL_EXTERNAL_USERS) {
 		$userHtml = '<a href="' . $url . '" class="qa-user-link' . $favclass . '"' . $mfAttr . '>' . $userHandle . '</a>';
 
 		if ($microdata) {
-			$userHtml = '<span itemprop="author" itemscope itemtype="http://schema.org/Person">' . $userHtml . '</span>';
+			$userHtml = '<span itemprop="author" itemscope itemtype="https://schema.org/Person">' . $userHtml . '</span>';
 		}
 
 		return $userHtml;

qa-include/pages/question.php

@@ -259,8 +259,8 @@ if ($formtype == 'q_edit') { // ...in edit mode
 $microdata = qa_opt('use_microdata');
 if ($microdata) {
 	$qa_content['head_lines'][] = '<meta itemprop="name" content="' . qa_html($qa_content['q_view']['raw']['title']) . '">';
-	$qa_content['html_tags'] .= ' itemscope itemtype="http://schema.org/QAPage"';
-	$qa_content['wrapper_tags'] = ' itemprop="mainEntity" itemscope itemtype="http://schema.org/Question"';
+	$qa_content['html_tags'] .= ' itemscope itemtype="https://schema.org/QAPage"';
+	$qa_content['wrapper_tags'] = ' itemprop="mainEntity" itemscope itemtype="https://schema.org/Question"';
 }