Implemented an extended user profile based on a patch from Jethro Carr (issue 510).

Changes with respect to the original patch:
- use Gconf instead of separate table / data scheme
- better form validation for URLs and emails
- no htmlentity-encoded contents in the database (pluf automatically safe-encodes
  stuff before it writes out contents into templates)
- add visual separators in the form views to have a distinct view of basic
  (important) data and other data which are only displayed in the public profile
- give a hint about the maximum display size of 60x60 px^2 and use max-width and
  max-height in the templates to avoid nasty distortions by the browser
- use target=_blank and rel=nofollow on the twitter and website links in the profile
- some whitespace / formatting / code style fixes

src/IDF/Views/Issue.php

@@ -279,6 +279,7 @@ class IDF_Views_Issue
                 $form = new IDF_Form_IssueUpdate(null, $params);
             }
         }
+
         $arrays = self::autoCompleteArrays($prj);
         return Pluf_Shortcuts_RenderToResponse('idf/issues/view.html',
                                                array_merge(
@@ -290,7 +291,7 @@ class IDF_Views_Issue
                                                      'page_title' => $title,
                                                      'closed' => $closed,
                                                      'preview' => $preview,
-                                                     'interested' =>$interested->count(),
+                                                     'interested' => $interested->count(),
                                                      ),
                                                $arrays),
                                                $request);