Merge pull request #6 from brettdewoody/master

Fix issue #4 where {{ gist:id }} does not work.

Author: jackmcdade

pi.gist.php

@@ -8,15 +8,15 @@ class Plugin_gist extends Plugin {
     'author_url' => 'http://jackmcdade.com'
   );
 
-  static public function __callStatic($method, $args) {
+  public function __call($method, $args) {
     return "<script src=\"http://gist.github.com/{$method}.js\"></script>";
   }
 
   public function index() {
-  	$id = $this->fetchParam('id', '');
-  	$file = $this->fetchParam('file', '');
+    $id = $this->fetchParam('id', '');
+    $file = $this->fetchParam('file', '');
 
     return "<script src=\"http://gist.github.com/{$id}.js" . ($file == '' ? '' : '?file=' . $file) . "\"></script>";
   }
 
-}
+}