fix posting by email

controllers/hooks.php

@@ -25,16 +25,16 @@ $app->post('/mailgun', function() use($app) {
   );
 
   if(k($params, 'Subject'))
-    $data['name'] = k($params, 'Subject');
+    $data['name'] = trim(k($params, 'Subject'));
 
-  if(k($params['body-plain'])
-    $data['content'] = k($params, 'body-plain');
+  if(k($params, 'body-plain'))
+    $data['content'] = trim(k($params, 'body-plain'));
 
   // Set tags for any hashtags used in the body
   if(preg_match_all('/#([^ ]+)/', $data['content'], $matches)) {
     $tags = array();
     foreach($matches[1] as $m)
-      $tags[] = $m;
+      $tags[] = trim($m);
     if($tags) {
       if($user->send_category_as_array != 1) {
         $data['category'] = $tags;