diff --git a/docs/changelog.rst b/docs/changelog.rst
index 01ebe81..3935cb1 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -1,6 +1,10 @@
 Changelog
 =========
 
+* :release:`0.2.0 <2014-12-29>`
+* :feature:`-` add task :py:func:`osusers.tasks.delete_ldap_group`
+* :support:`-` use celery routers from gvacommon
+
 * :release:`0.1.3 <2014-12-26>`
 * :support:`-` add celery routing for file server tasks
 
diff --git a/docs/conf.py b/docs/conf.py
index 0e168f4..a02f850 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -14,6 +14,7 @@
 
 import sys
 import os
+import django
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
@@ -23,6 +24,8 @@ sys.path.insert(0, os.path.abspath(os.path.join('..', 'gvaldap')))
 os.environ['GVALDAP_ALLOWED_HOSTS'] = 'localhost'
 os.environ['GVALDAP_SERVER_EMAIL'] = 'root@localhost'
 
+django.setup()
+
 # -- General configuration -----------------------------------------------------
 
 # If your documentation needs a minimal Sphinx version, state it here.
@@ -57,9 +60,9 @@ copyright = u'2014, Jan Dittberner'
 # built documents.
 #
 # The short X.Y version.
-version = '0.1.3'
+version = '0.2'
 # The full version, including alpha/beta/rc tags.
-release = '0.1.3'
+release = '0.2.0'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/gvaldap/gvacommon/.gitignore b/gvaldap/gvacommon/.gitignore
new file mode 100644
index 0000000..3bb2efd
--- /dev/null
+++ b/gvaldap/gvacommon/.gitignore
@@ -0,0 +1,2 @@
+.*.swp
+*.pyc
diff --git a/gvaldap/gvacommon/__init__.py b/gvaldap/gvacommon/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/gvaldap/gvacommon/celeryrouters.py b/gvaldap/gvacommon/celeryrouters.py
new file mode 100644
index 0000000..e468813
--- /dev/null
+++ b/gvaldap/gvacommon/celeryrouters.py
@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+
+class LdapRouter(object):
+
+    def route_for_task(self, task, args=None, kwargs=None):
+        if 'ldap' in task:
+            return {'exchange': 'ldap',
+                    'exchange_type': 'direct',
+                    'queue': 'ldap'}
+        return None
+
+
+class FileRouter(object):
+
+    def route_for_task(self, task, args=None, kwargs=None):
+        if 'file' in task:
+            return {'exchange': 'file',
+                    'exchange_type': 'direct',
+                    'queue': 'file'}
+        return None
+
+
diff --git a/gvaldap/gvaldap/settings/base.py b/gvaldap/gvaldap/settings/base.py
index d115c34..de70798 100644
--- a/gvaldap/gvaldap/settings/base.py
+++ b/gvaldap/gvaldap/settings/base.py
@@ -291,10 +291,12 @@ CELERY_RESULT_BACKEND = 'amqp'
 CELERY_RESULT_PERSISTENT = True
 CELERY_TASK_RESULT_EXPIRES = None
 CELERY_ROUTES = (
-    'osusers.tasks.LdapRouter',
-    'osusers.tasks.FileRouter',
+    'gvacommon.celeryrouters.LdapRouter',
+    'gvacommon.celeryrouters.FileRouter',
 )
-CELERY_ACCEPT_CONTENT = ['pickle', 'yaml', 'json']
+CELERY_TIMEZONE = 'Europe/Berlin'
+CELERY_ENABLE_UTC = True
+CELERY_ACCEPT_CONTENT = ['json']
 CELERY_TASK_SERAILIZER = 'json'
 CELERY_RESULT_SERIALIZER = 'json'
 ########## END CELERY CONFIGURATION
diff --git a/gvaldap/osusers/tasks.py b/gvaldap/osusers/tasks.py
index 29e07e3..1bd5c75 100644
--- a/gvaldap/osusers/tasks.py
+++ b/gvaldap/osusers/tasks.py
@@ -21,26 +21,6 @@ from ldapentities.models import (
 _logger = get_task_logger(__name__)
 
 
-class LdapRouter(object):
-
-    def route_for_task(self, task, args=None, kwargs=None):
-        if 'ldap' in task:
-            return {'exchange': 'ldap',
-                    'exchange_type': 'direct',
-                    'queue': 'ldap'}
-        return None
-
-
-class FileRouter(object):
-
-    def route_for_task(self, task, args=None, kwargs=None):
-        if 'file' in task:
-            return {'exchange': 'file',
-                    'exchange_type': 'direct',
-                    'queue': 'file'}
-        return None
-
-
 @shared_task
 def create_ldap_group(groupname, gid, descr):
     """
@@ -237,3 +217,25 @@ def delete_ldap_group_if_empty(groupname):
                 ldapgroup.dn, len(ldapgroup.members))
             )
     return False
+
+
+@shared_task
+def delete_ldap_group(groupname):
+    """
+    This taks deletes the given group.
+
+    :param str groupname: the group name
+    :return: True if the user has been deleted, False otherwise
+    :rtype: boolean
+
+    """
+    try:
+        ldapgroup = LdapGroup.objects.get(name=groupname)
+    except LdapGroup.DoesNotExist:
+        _logger.info('ldap group with name {0} does not exist'.format(
+            groupname)
+        )
+    else:
+        ldapgroup.delete()
+        return True
+    return False