Added issue 14, ability to change the interest status.

The interest status or watch list is now shown in the list of the issues
and can be changed by clicking on the star in front of the title of an
issue when looking at an issue.

src/IDF/Form/IssueCreate.php

@@ -220,9 +220,6 @@ class IDF_Form_IssueCreate extends Pluf_Form
             foreach ($tags as $tag) {
                 $issue->setAssoc($tag);
             }
-            $issue->setAssoc($this->user); // the user is
-                                           // automatically
-                                           // interested.
             // add the first comment
             $comment = new IDF_IssueComment();
             $comment->issue = $issue;

src/IDF/Form/IssueUpdate.php

@@ -253,6 +253,7 @@ class IDF_Form_IssueUpdate  extends IDF_Form_IssueCreate
             $comment->changes = $changes;
             $comment->create();
             $this->issue->update();
+            $this->issue->setAssoc($this->user); // interested user.
             return $this->issue;
         }
         throw new Exception(__('Cannot save the model from an invalid form.'));