Fix link registratio from menu to tool

apps/diagnostics/registry.py

@@ -0,0 +1,12 @@
+from __future__ import absolute_import
+
+from django.utils.translation import ugettext_lazy as _
+
+from .icons import icon_diagnostic
+from .links import diagnostic_list
+
+label = _(u'Diagnostics')
+description = _(u'Central registration and execution of app diagnostics.')
+icon = icon_diagnostic
+dependencies = ['navigation', 'icons', 'permissions']
+tool_links = [diagnostic_list]