improve changelog parse

Author: jordisala1991

src/Command/ReleaseCommand.php

@@ -241,7 +241,7 @@ private function parseChangelog($pull)
     {
         $changelog = array();
         $body = preg_replace('/<!--(.*)-->/Uis', '', $pull['body']);
-        preg_match('/## Changelog.*```\s*markdown\s*\\n(.*)\\n```.*/is', $body, $matches);
+        preg_match('/## Changelog.*```\s*markdown\s*\\n(.*)\\n```/Uis', $body, $matches);
 
         if (count($matches) == 2) {
             $lines = explode(PHP_EOL, $matches[1]);
@@ -255,7 +255,7 @@ private function parseChangelog($pull)
                 }
 
                 if (0 === strpos($line, '#')) {
-                    $section = end(explode(' ', $line));
+                    $section = preg_replace('/^#* /i', '', $line);
                 } elseif (!empty($section)) {
                     $line = preg_replace('/^- /i', '', $line);
                     $changelog[$section][] = '- [[#'.$pull['number'].']('.$pull['html_url'].')] '.