Remove name attribute and add more dependencies

apps/history/registry.py

@@ -5,9 +5,8 @@ from django.utils.translation import ugettext_lazy as _
 from .icons import icon_history_list
 from .links import history_list
 
-name = 'history'
 label = _(u'History')
 description = _(u'Handles the events registration and event logging.')
-dependencies = ['app_registry']
+dependencies = ['app_registry', 'icons', 'navigation']
 icon = icon_history_list
 tool_links = [history_list]