upgrade django-filer 1.3.2 to 1.4.1

addons/django-filer/addon.json

@@ -1,9 +1,9 @@
 {
     "installed-apps": [
-        "filer", 
-        "easy_thumbnails", 
-        "mptt", 
+        "filer",
+        "easy_thumbnails",
+        "mptt",
         "polymorphic"
-    ], 
+    ],
     "package-name": "django-filer"
 }

requirements.in

@@ -9,7 +9,7 @@ https://control.divio.com/api/v1/apps/serve/djangocms-history/0.5.3/05803675-6e8
 https://control.divio.com/api/v1/apps/serve/djangocms-link/2.1.2/35b986c1-fafb-46ee-b665-aa36603f233a/djangocms-link-2.1.2.tar.gz#egg=djangocms-link==2.1.2
 https://control.divio.com/api/v1/apps/serve/djangocms-picture/2.0.6/005e8663-d1cc-4667-936c-30709edad076/djangocms-picture-2.0.6.tar.gz#egg=djangocms-picture==2.0.6
 https://control.divio.com/api/v1/apps/serve/djangocms-text-ckeditor/3.5.3/a7b5179f-cea5-4af8-b235-6b7f709c4e6a/djangocms-text-ckeditor-3.5.3.tar.gz#egg=djangocms-text-ckeditor==3.5.3
-https://control.divio.com/api/v1/apps/serve/django-filer/1.3.2/a68cceeb-0373-47af-9cf6-01dbc9bead40/django-filer-1.3.2.tar.gz#egg=django-filer==1.3.2
+https://control.divio.com/api/v1/apps/serve/django-filer/1.4.1/e7e860ea-0af6-4fc8-95e1-ad2580ba0bac/django-filer-1.4.1.tar.gz#egg=django-filer==1.4.1
 # </INSTALLED_ADDONS>
 aldryn-search==1.0.1
 django-fontawesome==0.3.1