diff --git a/apps/common/utils.py b/apps/common/utils.py
index 21aa433f36..8ae2c5f97b 100644
--- a/apps/common/utils.py
+++ b/apps/common/utils.py
@@ -357,3 +357,15 @@ def validate_path(path):
         return False
 
     return True
+
+
+#def encapsulate(function):
+#   def wrapper():
+#        return function
+#    return wrapper
+    
+def encapsulate(function):
+    # Workaround Django ticket 15791
+    # Changeset 16045
+    # http://stackoverflow.com/questions/6861601/cannot-resolve-callable-context-variable/6955045#6955045
+    return lambda: function
diff --git a/apps/converter/views.py b/apps/converter/views.py
index ef7173f908..4e74757fae 100644
--- a/apps/converter/views.py
+++ b/apps/converter/views.py
@@ -2,8 +2,9 @@ from django.utils.translation import ugettext_lazy as _
 from django.shortcuts import render_to_response
 from django.template import RequestContext
 
-from converter import backend
+from common.utils import encapsulate
 
+from converter import backend
 from converter.conf.settings import GRAPHICS_BACKEND
 
 def formats_list(request):
@@ -16,11 +17,11 @@ def formats_list(request):
         'extra_columns': [
             {
                 'name': _(u'name'),
-                'attribute': lambda x: x[0]
+                'attribute': encapsulate(lambda x: x[0])
             },
             {
                 'name': _(u'description'),
-                'attribute': lambda x: x[1]
+                'attribute': encapsulate(lambda x: x[1])
             }
         ],
         'backend': GRAPHICS_BACKEND,
diff --git a/apps/document_comments/__init__.py b/apps/document_comments/__init__.py
index eb85e3d552..01619af003 100644
--- a/apps/document_comments/__init__.py
+++ b/apps/document_comments/__init__.py
@@ -5,6 +5,7 @@ from django.contrib.comments.models import Comment
 from navigation.api import register_links, \
     register_model_list_columns
 from permissions.api import register_permission, set_namespace_title
+from common.utils import encapsulate
 
 from documents.models import Document
 
@@ -34,7 +35,7 @@ register_model_list_columns(Comment, [
     },
     {
         'name': _(u'user'),
-        'attribute': lambda x: x.user.get_full_name() if x.user.get_full_name() else x.user
+        'attribute': encapsulate(lambda x: x.user.get_full_name() if x.user.get_full_name() else x.user)
     },
     {
         'name': _(u'comment'),
diff --git a/apps/documents/__init__.py b/apps/documents/__init__.py
index 392f1fbe47..96a2e95df7 100644
--- a/apps/documents/__init__.py
+++ b/apps/documents/__init__.py
@@ -1,6 +1,6 @@
 from django.utils.translation import ugettext_lazy as _
 
-from common.utils import validate_path
+from common.utils import validate_path, encapsulate
 from navigation.api import register_links, register_top_menu, \
     register_model_list_columns, register_multi_item_links, \
     register_sidebar_template
@@ -168,13 +168,13 @@ def document_exists(document):
 
 register_model_list_columns(Document, [
         {'name':_(u'thumbnail'), 'attribute':
-            lambda x: document_thumbnail(x)
+            encapsulate(lambda x: document_thumbnail(x))
         },
         {'name':_(u'tags'), 'attribute':
-            lambda x: get_tags_inline_widget_simple(x)
+            encapsulate(lambda x: get_tags_inline_widget_simple(x))
         },
         {'name':_(u'metadata'), 'attribute':
-            lambda x: get_metadata_string(x)
+            encapsulate(lambda x: get_metadata_string(x))
         },
     ])
 
diff --git a/apps/documents/views.py b/apps/documents/views.py
index 6846c65d59..182d05a87e 100644
--- a/apps/documents/views.py
+++ b/apps/documents/views.py
@@ -13,7 +13,7 @@ from django.utils.http import urlencode
 
 import sendfile
 from common.utils import pretty_size, parse_range, urlquote, \
-    return_diff
+    return_diff, encapsulate
 from common.widgets import two_state_template
 from common.literals import PAGE_SIZE_DIMENSIONS, \
     PAGE_ORIENTATION_PORTRAIT, PAGE_ORIENTATION_LANDSCAPE
@@ -978,7 +978,7 @@ def document_type_filename_list(request, document_type_id):
         'extra_columns': [
             {
                 'name': _(u'enabled'),
-                'attribute': lambda x: two_state_template(x.enabled),
+                'attribute': encapsulate(lambda x: two_state_template(x.enabled)),
             }
         ]
     }
diff --git a/apps/folders/views.py b/apps/folders/views.py
index fa2c7dffbe..f846b7d2a9 100644
--- a/apps/folders/views.py
+++ b/apps/folders/views.py
@@ -11,6 +11,7 @@ from documents.literals import PERMISSION_DOCUMENT_VIEW
 from documents.models import Document
 from documents.widgets import document_thumbnail, document_link
 from permissions.api import check_permissions
+from common.utils import encapsulate
 
 from folders.models import Folder, FolderDocument
 from folders.forms import FolderForm, AddDocumentForm
@@ -22,7 +23,7 @@ def folder_list(request, queryset=None, extra_context=None):
         'multi_select_as_buttons': True,
         'extra_columns': [
             {'name': _(u'created'), 'attribute': 'datetime_created'},
-            {'name': _(u'documents'), 'attribute': lambda x: x.folderdocument_set.count()}
+            {'name': _(u'documents'), 'attribute': encapsulate(lambda x: x.folderdocument_set.count())}
         ]
     }
     if extra_context:
diff --git a/apps/history/views.py b/apps/history/views.py
index 113f1b818b..c344bf0d45 100644
--- a/apps/history/views.py
+++ b/apps/history/views.py
@@ -7,6 +7,7 @@ from django.db.models.loading import get_model
 from django.http import Http404
 
 from permissions.api import check_permissions
+from common.utils import encapsulate
 
 from history.models import History
 from history.forms import HistoryDetailForm
@@ -27,11 +28,11 @@ def history_list(request):
             },
             {
                 'name': _(u'object'),
-                'attribute': lambda x: history_entry_object_link(x)
+                'attribute': encapsulate(lambda x: history_entry_object_link(x))
             },
             {
                 'name': _(u'summary'),
-                'attribute': lambda x: history_entry_summary(x)
+                'attribute': encapsulate(lambda x: history_entry_summary(x))
             }
         ],
         'hide_object': True,
@@ -61,7 +62,7 @@ def history_for_object(request, app_label, module_name, object_id):
             },
             {
                 'name': _(u'summary'),
-                'attribute': lambda x: history_entry_summary(x)
+                'attribute': encapsulate(lambda x: history_entry_summary(x))
             }
         ],
         'hide_object': True,
diff --git a/apps/main/__init__.py b/apps/main/__init__.py
index 6153de779a..23b39c236f 100644
--- a/apps/main/__init__.py
+++ b/apps/main/__init__.py
@@ -9,7 +9,8 @@ from converter import formats_list
 from documents import document_type_views
 from metadata import setup_metadata_type_list, metadata_type_setup_views
 from metadata import setup_metadata_set_list, metadata_set_setup_views
-from sources import source_list, source_views
+#from sources import source_list, source_views
+#from sources import source_views
 
 from main.conf.settings import SIDE_BAR_SEARCH
 from main.conf.settings import DISABLE_HOME_VIEW
@@ -51,14 +52,15 @@ register_top_menu('about', link={'text': _(u'about'), 'view': 'about', 'famfam':
 
 register_links(['tools_menu', 'statistics', 'history_list', 'history_view', 'formats_list'], [tools_menu, statistics, history_list, formats_list, sentry], menu_name='secondary_menu')
 
-setup_links = [check_settings, role_list, user_list, group_list, document_types, setup_metadata_type_list, setup_metadata_set_list, source_list, admin_site]
+#setup_links = [check_settings, role_list, user_list, group_list, document_types, setup_metadata_type_list, setup_metadata_set_list, source_list, admin_site]
+setup_links = [check_settings, role_list, user_list, group_list, document_types, setup_metadata_type_list, setup_metadata_set_list, admin_site]
 register_links(['setting_list'], setup_links, menu_name='secondary_menu')
 register_links(permission_views, setup_links, menu_name='secondary_menu')
 register_links(user_management_views, setup_links, menu_name='secondary_menu')
 register_links(document_type_views, setup_links, menu_name='secondary_menu')
 register_links(metadata_type_setup_views, setup_links, menu_name='secondary_menu')
 register_links(metadata_set_setup_views, setup_links, menu_name='secondary_menu')
-register_links(source_views, setup_links, menu_name='secondary_menu')
+#register_links(source_views, setup_links, menu_name='secondary_menu')
 
 
 def get_version():
diff --git a/apps/metadata/views.py b/apps/metadata/views.py
index 24f57d0fb5..f112cda428 100644
--- a/apps/metadata/views.py
+++ b/apps/metadata/views.py
@@ -12,7 +12,7 @@ from documents.models import Document, RecentDocument, DocumentType
 from permissions.api import check_permissions
 from document_indexing.api import update_indexes, delete_indexes
 
-from common.utils import generate_choices_w_labels#, two_state_template
+from common.utils import generate_choices_w_labels, encapsulate
 from common.views import assign_remove
 
 from metadata import PERMISSION_METADATA_DOCUMENT_VIEW, \
@@ -396,7 +396,7 @@ def setup_metadata_set_list(request):
         'extra_columns': [
             {
                 'name': _(u'members'),
-                'attribute': lambda x: x.metadatasetitem_set.count(),
+                'attribute': encapsulate(lambda x: x.metadatasetitem_set.count()),
             },
         ]
     }
diff --git a/apps/ocr/views.py b/apps/ocr/views.py
index 0a8558f1f8..932325667b 100644
--- a/apps/ocr/views.py
+++ b/apps/ocr/views.py
@@ -13,6 +13,7 @@ from celery.task.control import inspect
 from permissions.api import check_permissions
 from documents.models import Document
 from documents.widgets import document_link, document_thumbnail
+from common.utils import encapsulate
 
 from ocr import PERMISSION_OCR_DOCUMENT, PERMISSION_OCR_DOCUMENT_DELETE, \
     PERMISSION_OCR_QUEUE_ENABLE_DISABLE, PERMISSION_OCR_CLEAN_ALL_PAGES, \
@@ -44,11 +45,11 @@ def queue_document_list(request, queue_name='default'):
             'navigation_object_name': 'queue',
             'list_object_variable_name': 'queue_document',
             'extra_columns': [
-                {'name': 'document', 'attribute': lambda x: document_link(x.document) if hasattr(x, 'document') else _(u'Missing document.')},
-                {'name': _(u'thumbnail'), 'attribute': lambda x: document_thumbnail(x.document)},
-                {'name': 'submitted', 'attribute': lambda x: unicode(x.datetime_submitted).split('.')[0], 'keep_together':True},
+                {'name': 'document', 'attribute': encapsulate(lambda x: document_link(x.document) if hasattr(x, 'document') else _(u'Missing document.'))},
+                {'name': _(u'thumbnail'), 'attribute': encapsulate(lambda x: document_thumbnail(x.document))},
+                {'name': 'submitted', 'attribute': encapsulate(lambda x: unicode(x.datetime_submitted).split('.')[0]), 'keep_together':True},
                 {'name': 'delay', 'attribute': 'delay'},
-                {'name': 'state', 'attribute': lambda x: x.get_state_display()},
+                {'name': 'state', 'attribute': encapsulate(lambda x: x.get_state_display())},
                 {'name': 'node', 'attribute': 'node_name'},
                 {'name': 'result', 'attribute': 'result'},
             ],
diff --git a/apps/permissions/views.py b/apps/permissions/views.py
index 7da941a4ec..48108cc5d4 100644
--- a/apps/permissions/views.py
+++ b/apps/permissions/views.py
@@ -11,7 +11,7 @@ from django.core.exceptions import ObjectDoesNotExist
 from django.contrib.auth.models import User, Group
 
 from common.views import assign_remove
-from common.utils import generate_choices_w_labels
+from common.utils import generate_choices_w_labels, encapsulate
 
 from permissions.models import Role, Permission, PermissionHolder, RoleMember
 from permissions.forms import RoleForm, RoleForm_view
@@ -50,11 +50,11 @@ def role_permissions(request, role_id):
                 'title': _(u'permissions'),
                 'object_list': Permission.objects.all(),
                 'extra_columns': [
-                    {'name': _(u'namespace'), 'attribute': lambda x: namespace_titles[x.namespace] if x.namespace in namespace_titles else x.namespace},
+                    {'name': _(u'namespace'), 'attribute': encapsulate(lambda x: namespace_titles[x.namespace] if x.namespace in namespace_titles else x.namespace)},
                     {'name': _(u'name'), 'attribute': u'label'},
                     {
                         'name':_(u'state'),
-                        'attribute': lambda x: role_permission_link(role, x, role_permissions_list),
+                        'attribute': encapsulate(lambda x: role_permission_link(role, x, role_permissions_list)),
                     }
                 ],
                 'hide_link': True,
diff --git a/apps/smart_settings/views.py b/apps/smart_settings/views.py
index d8075fcc1b..e4d1b4d75a 100644
--- a/apps/smart_settings/views.py
+++ b/apps/smart_settings/views.py
@@ -3,7 +3,7 @@ from django.template import RequestContext
 from django.utils.translation import ugettext_lazy as _
 from django.utils.safestring import mark_safe
 
-from common.utils import return_type
+from common.utils import return_type, encapsulate
 from common.widgets import exists_with_famfam
 
 from smart_settings.api import settings
@@ -28,12 +28,12 @@ def setting_list(request):
         'hide_link': True,
         'hide_object': True,
         'extra_columns': [
-            {'name': _(u'name'), 'attribute': lambda x: mark_safe(u'<span style="font-weight: bold;">%s</span><br>%s' % (x.get('global_name'), x.get('description')))},
-            {'name': _(u'default'), 'attribute': lambda x: return_type(x['default'])},
-            {'name': _(u'value'), 'attribute': lambda x: mark_safe(u'<div class="nowrap">%s&nbsp;%s</div>' % (
+            {'name': _(u'name'), 'attribute': encapsulate(lambda x: mark_safe(u'<span style="font-weight: bold;">%s</span><br>%s' % (x.get('global_name'), x.get('description'))))},
+            {'name': _(u'default'), 'attribute': encapsulate(lambda x: return_type(x['default']))},
+            {'name': _(u'value'), 'attribute': encapsulate(lambda x: mark_safe(u'<div class="nowrap">%s&nbsp;%s</div>' % (
                     return_type(getattr(x['module'], x['name'])),
                     exists_with_famfam(getattr(x['module'], x['name'])) if x['exists'] else ''
-                ))
+                )))
             },
         ]
     }
diff --git a/apps/tags/__init__.py b/apps/tags/__init__.py
index 0ba335d7ee..9020d50eee 100644
--- a/apps/tags/__init__.py
+++ b/apps/tags/__init__.py
@@ -3,7 +3,7 @@ from django.utils.translation import ugettext_lazy as _
 from navigation.api import register_links, register_top_menu, \
     register_model_list_columns, register_multi_item_links
 from permissions.api import register_permission, set_namespace_title
-
+from common.utils import encapsulate
 from documents.models import Document
 
 from taggit.models import Tag
@@ -38,11 +38,11 @@ tag_multiple_delete = {'text': _(u'delete'), 'view': 'tag_multiple_delete', 'fam
 register_model_list_columns(Tag, [
     {
         'name': _(u'color'),
-        'attribute': lambda x: tag_color_block(x)
+        'attribute': encapsulate(lambda x: tag_color_block(x))
     },
     {
         'name': _(u'color name'),
-        'attribute': lambda x: x.tagproperties_set.get().get_color_display(),
+        'attribute': encapsulate(lambda x: x.tagproperties_set.get().get_color_display()),
     }
 ])
 
diff --git a/apps/tags/views.py b/apps/tags/views.py
index 6bb73837ba..88ee2b9872 100644
--- a/apps/tags/views.py
+++ b/apps/tags/views.py
@@ -9,6 +9,7 @@ from permissions.api import check_permissions
 from taggit.models import Tag
 from documents.models import Document
 from documents.views import document_list
+from common.utils import encapsulate
 
 from tags.forms import AddTagForm, TagForm
 from tags.models import TagProperties
@@ -116,7 +117,7 @@ def tag_list(request):
         'extra_columns': [
             {
                 'name': _(u'count'),
-                'attribute': lambda x: x.taggit_taggeditem_items.count()
+                'attribute': encapsulate(lambda x: x.taggit_taggeditem_items.count())
             }
         ]
     }, context_instance=RequestContext(request))
diff --git a/apps/user_management/views.py b/apps/user_management/views.py
index dce5bdc3fa..7fc5eee7ae 100644
--- a/apps/user_management/views.py
+++ b/apps/user_management/views.py
@@ -8,7 +8,7 @@ from django.core.urlresolvers import reverse
 from django.contrib.auth.models import User, Group
 
 from permissions.api import check_permissions
-from common.utils import generate_choices_w_labels
+from common.utils import generate_choices_w_labels, encapsulate
 from common.widgets import two_state_template
 from common.views import assign_remove
 
@@ -41,7 +41,7 @@ def user_list(request):
                 },
                 {
                     'name': _(u'active'),
-                    'attribute': lambda x: two_state_template(x.is_active),
+                    'attribute': encapsulate(lambda x: two_state_template(x.is_active)),
                 }
 
             ],