Merge pull request #476 from lucaboesch/doubledescription400fix

Omit double headings (and intro) on Moodle ≥ 4.0.0 fixes #450.

view.php

@@ -58,6 +58,7 @@ $PAGE->requires->css(new moodle_url(\mod_hvp\view_assets::getsiteroot() . '/mod/
 
 // Print page HTML.
 echo $OUTPUT->header();
+if ($CFG->branch < 400) {
     echo $OUTPUT->heading(format_string($content['title']));
     echo '<div class="clearer"></div>';
 
@@ -70,6 +71,7 @@ if (trim(strip_tags($content['intro'], '<img>'))) {
         ), $cm->id);
         echo $OUTPUT->box_end();
     }
+}
 
 $hashub = (has_capability('mod/hvp:share', $context) && !empty(get_config('mod_hvp', 'site_uuid')) && !empty(get_config('mod_hvp', 'hub_secret')));
 $isshared = $content['shared'] === '1';