Add support for multiple dashboards.

Add support for removing dashboard widgets.

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

mayan/apps/checkouts/apps.py

@@ -11,10 +11,11 @@ from django.utils.translation import ugettext_lazy as _
 
 from acls import ModelPermission
 from common import MayanAppConfig, menu_facet, menu_main, menu_sidebar
-from common.classes import DashboardWidget
+from common.dashboards import dashboard_main
 from mayan.celery import app
 from rest_api.classes import APIEndPoint
 
+from .dashboard_widgets import widget_checkouts
 from .handlers import check_new_version_creation
 from .links import (
     link_checkin_document, link_checkout_document, link_checkout_info,
@@ -49,13 +50,6 @@ class CheckoutsApp(MayanAppConfig):
 
         DocumentCheckout = self.get_model('DocumentCheckout')
 
-        DashboardWidget(
-            icon='fa fa-shopping-cart',
-            queryset=DocumentCheckout.objects.all(),
-            label=_('Checkedout documents'),
-            link=reverse_lazy('checkouts:checkout_list')
-        )
-
         Document.add_to_class(
             'check_in',
             lambda document, user=None: DocumentCheckout.objects.check_in_document(document, user)
@@ -114,6 +108,8 @@ class CheckoutsApp(MayanAppConfig):
             }
         )
 
+        dashboard_main.add_widget(order=-1, widget=widget_checkouts)
+
         menu_facet.bind_links(links=(link_checkout_info,), sources=(Document,))
         menu_main.bind_links(links=(link_checkout_list,), position=98)
         menu_sidebar.bind_links(