Navbar (#31)

* started workin on 'navbar' module

* changed bootstrap theme to bootswatch/Simplex

* big work on navbar logic

* starting creating menus using navbar

* converted app views to new Wepage decorator, updated navbar

* reimplemented DernieresMaraudes as a dropdown instead of ContextMixin

* reorganised static files, minor code cleanups

* turned Link.href into lazy-evaluated property

* collapsed 'navbar' module into 'website', dynamic building of ApplicationMenu subclasses

* minor cleanup

* blah blah blah

* added way to add admin/non-admin links

* minor style change : red border for active page instead of all dropdowns

* deleted file

* prepare adding removing menu templates files, being replaced by code

* essayé de généraliser le code pour les modaux bootstrap, non testé git status

* more preparation and thinking on navbar app_menus logic...

* added LinkManager and DropdownManager, getting closer...

* small fix in DropdownManager.__get__

* boosted up work: keep it simple so it can be merged fast, major layout changes

* added month filter on maraudes:liste

* added 'as_icon' filter to display boolean/null values as bootstrap icons

* remove inactive user from planning selection

* removed all unused 'menu' templates

* set up django_select2 to use static files

* small fix after review

suivi/apps.py

@@ -3,3 +3,14 @@ from django.apps import AppConfig
 
 class SuiviConfig(AppConfig):
     name = 'suivi'
+
+from utilisateurs.models import Maraudeur
+from website.decorators import Webpage
+suivi = Webpage("suivi", icon="eye-open", defaults={
+                        'restricted': [Maraudeur],
+                        'ajax': False,
+                    }
+                )
+
+suivi.app_menu.add_link(('Liste des sujets', 'suivi:liste', 'list'))
+