diff --git a/test/common.py b/test/common.py
index e1b86de..c242aa6 100644
--- a/test/common.py
+++ b/test/common.py
@@ -1,400 +1,401 @@
 
 # Copyright (C) 2007-2010 AG-Projects.
 #
 
-import sys
 import os
-import unittest
 import re
-import types
 import socket
+import sys
 import time
 import traceback
-from optparse import OptionParser, SUPPRESS_HELP
-from lxml import etree
+import types
+import unittest
+
 from copy import copy
 from ConfigParser import SafeConfigParser as ConfigParser
+from lxml import etree
+from optparse import OptionParser, SUPPRESS_HELP
 from xcaplib import xcapclient
 
 
 apps = ['pres-rules',
         'org.openmobilealliance.pres-rules',
         'resource-lists',
         'pidf-manipulation',
         'watchers',
         'rls-services',
         'test-app',
         'xcap-caps']
 
 def succeed(r):
     return 200 <= r.status <= 299
 
 class XCAPTest(unittest.TestCase):
 
     # if true, each PUT or DELETE will be followed by GET to ensure that it has indeed succeeded
     invariant_check = True
 
     @classmethod
     def setupOptionParser(cls, parser):
         xcapclient.setup_parser_client(parser)
 
     def initialize(self, options, args = []):
         if not hasattr(self, '_options'):
             self._options = copy(options)
         if not hasattr(self, '_args'):
             self._args = copy(args)
 
     def new_client(self):
         return xcapclient.make_xcapclient(self.options)
 
     def update_client_options(self):
         self.client = self.new_client()
 
     def setUp(self):
         self.options = copy(self._options)
         self.args = copy(self._args)
         self.update_client_options()
 
     def assertStatus(self, r, status, msg=None):
         if status is None:
             return
         elif isinstance(status, int):
             if r.status != status:
                 if msg is None:
                     msg = 'Status (%s) != %s' % (r.status, status)
                 raise self.failureException(msg)
         else:
             ## status is a tuple or a list
             if r.status not in status:
                 if msg is None:
                     msg = 'Status (%s) not in %s' % (r.status, str(status))
                 raise self.failureException(msg)
 
     def assertHeader(self, r, key, value=None, msg=None):
         """Fail if (key, [value]) not in r.headers."""
         lowkey = key.lower()
         for k, v in r.headers.items():
             if k.lower() == lowkey:
                 if value is None or str(value) == v:
                     return v
         if msg is None:
             if value is None:
                 msg = '%s not in headers' % key
             else:
                 msg = '%s:%s not in headers' % (key, value)
         raise self.failureException(msg)
 
     def assertETag(self, r):
         v = self.assertHeader(r, 'ETag')
         return r.etag
 
     def assertNoHeader(self, r, key, msg=None):
         """Fail if key in r.headers."""
         lowkey = key.lower()
         matches = [k for k, v in r.headers if k.lower() == lowkey]
         if matches:
             if msg is None:
                 msg = '%s in headers' % key
             raise self.failureException(msg)
 
     def assertBody(self, r, value, msg=None):
         """Fail if value != r.body."""
         if value != r.body:
             if msg is None:
                 msg = 'expected body:\n"%s"\n\nactual body:\n"%s"' % (value, r.body)
             raise self.failureException(msg)
 
     def assertInBody(self, r, value, msg=None):
         """Fail if value not in r.body."""
         if value not in r.body:
             if msg is None:
                 msg = '%r not in body\nbody: %r' % (value, r.body)
             raise self.failureException(msg)
 
     def assertNotInBody(self, r, value, msg=None):
         """Fail if value in r.body."""
         if value in r.body:
             if msg is None:
                 msg = '%s found in body' % value
             raise self.failureException(msg)
 
     def assertMatchesBody(self, r, pattern, msg=None, flags=0):
         """Fail if value (a regex pattern) is not in r.body."""
         if re.search(pattern, r.body, flags) is None:
             if msg is None:
                 msg = 'No match for %s in body' % pattern
             raise self.failureException(msg)
 
     def assertDocument(self, application, body, client=None):
         r = self.get(application, client=client)
         self.assertBody(r, body)
 
     def get(self, application, node=None, status=200, **kwargs):
         client = kwargs.pop('client', None) or self.client
         r = client._get(application, node, **kwargs)
         self.validate_error(r, application)
         self.assertStatus(r, status)
         if 200<=status<=299:
             self.assertHeader(r, 'ETag')
         return r
 
     def get_global(self, *args, **kwargs):
         kwargs['globaltree'] = True
         return self.get(*args, **kwargs)
 
     def put(self, application, resource, node=None,
             status=[200,201], content_type_in_GET=None, client=None, **kwargs):
         client = client or self.client
         r_put = client._put(application, resource, node, **kwargs)
         self.validate_error(r_put, application)
         self.assertStatus(r_put, status)
 
         # if PUTting succeed, check that document is there and equals to resource
 
         if self.invariant_check and succeed(r_put):
             r_get = self.get(application, node, status=None, client=client)
             self.assertStatus(r_get, 200,
                               'although PUT succeed, following GET on the same URI did not: %s %s' % \
                               (r_get.status, r_get.reason))
             self.assertEqual(resource.strip(), r_get.body) # is body put equals to body got?
             if content_type_in_GET is not None:
                 self.assertHeader(r_get, 'content-type', content_type_in_GET)
 
         return r_put
 
     def put_new(self, application, resource, node=None,
                 status=201, content_type_in_GET=None, client=None):
         # QQQ use If-None-Match or some other header to do that without get
         self.get(application, node=node, status=404, client=client)
         return self.put(application, resource, node, status, content_type_in_GET, client)
 
     def delete(self, application, node=None, status=200, client=None, **kwargs):
         client = client or self.client
         r = client._delete(application, node, **kwargs)
         self.validate_error(r, application)
         self.assertStatus(r, status)
 
         # if deleting succeed, GET should return 404
         if self.invariant_check and succeed(r) or r.status == 404:
             r_get = self.get(application, node, status=None)
             self.assertStatus(r_get, 404,
                               'although DELETE succeed, following GET on the same URI did not return 404: %s %s' % \
                               (r_get.status, r_get.reason))
         return r
 
     def put_rejected(self, application, resource, status=409, client=None):
         """DELETE the document, then PUT it and expect 409 error. Return PUT result.
         If PUT has indeed failed, also check that GET returns 404
         """
         self.delete(application, status=[200,404], client=client)
         put_result = self.put(application, resource, status=status, client=client)
         self.get(application, status=404, client=client)
         return put_result
 
     def getputdelete(self, application, document, content_type, client=None):
         self.delete(application, status=[200,404], client=client)
         self.get(application, status=404, client=client)
         self.put(application, document, status=201, content_type_in_GET=content_type, client=client)
         self.put(application, document, status=200, content_type_in_GET=content_type, client=client)
         self.put(application, document, status=200, content_type_in_GET=content_type, client=client)
         self.delete(application, status=200, client=client)
         self.delete(application, status=404, client=client)
 
     def validate_error(self, r, application):
         if r.status==409 or r.headers.gettype()=='application/xcap-error+xml':
             self.assertEqual(r.headers.gettype(), 'application/xcap-error+xml')
             xml = validate_xcaps_error(r.body)
             if '<uniqueness-failure' in r.body:
                 namespaces={'d': 'urn:ietf:params:xml:ns:xcap-error'}
                 field = xml.xpath('/d:xcap-error/d:uniqueness-failure/d:exists/@field', namespaces=namespaces)
                 assert len(field)==1, r.body
 
 
 class TestSuite(unittest.TestSuite):
 
     def initialize(self, options, args):
         for test in self._tests:
             if hasattr(test, 'initialize'):
                 test.initialize(options, args)
 
 
 class TestLoader(unittest.TestLoader):
 
     suiteClass = TestSuite
 
     def loadTestsFromModule_wparser(self, module, option_parser):
         """Return a suite of all tests cases contained in the given module"""
         tests = []
         for name in dir(module):
             obj = getattr(module, name)
             if (isinstance(obj, (type, types.ClassType)) and
                 issubclass(obj, unittest.TestCase)):
                 tests.append(self.loadTestsFromTestCase(obj))
                 if hasattr(obj, 'setupOptionParser'):
                     obj.setupOptionParser(option_parser)
         return self.suiteClass(tests)
 
 
 def loadSuiteFromModule(module, option_parser):
     if isinstance(module, basestring):
         module = sys.modules[module]
     suite = TestLoader().loadTestsFromModule_wparser(module, option_parser)
     return suite
 
 def run_suite(suite, options, args):
     if hasattr(suite, 'initialize'):
         suite.initialize(options, args)
 
     if options.debug:
         try:
             suite.debug()
         except Exception, ex:
             print '%s: %s' % (ex.__class__.__name__, ex)
             for x in dir(ex):
                 attr = getattr(ex, x)
                 if x[:1]!='_' and not callable(attr):
                     print '%s: %r' % (x, attr)
             raise
     else:
         unittest.TextTestRunner(verbosity=2).run(suite)
 
 
 def validate(document, schema):
     parser = etree.XMLParser(schema = schema)
     return etree.fromstring(document, parser)
 
 def open_schema(filename):
     my_dir = os.path.dirname(os.path.abspath(__file__))
     return file(os.path.join(my_dir, 'schemas', filename))
 
 def load_schema(filename):
     return etree.XMLSchema(etree.parse(open_schema(filename)))
 
 xcaps_error_schema = load_schema('xcap-error.xsd')
 
 def validate_xcaps_error(document):
     xml = validate(document, xcaps_error_schema)
     root_tag = xml.xpath('/x:xcap-error', namespaces={'x': 'urn:ietf:params:xml:ns:xcap-error'})
     assert len(root_tag)==1, root_tag
     return xml
 
 def prepare_optparser(option_parser=None):
     if option_parser is None:
         option_parser = OptionParser(conflict_handler='resolve')
     option_parser = OptionParser(conflict_handler='resolve')
     option_parser.add_option('-d', '--debug', action='store_true', default=False)
     option_parser.add_option('-r', '--repeat', type='int', default=1, help='default is 1. use -1 to loop forever')
 
     # Fix xcaplib to use non-blocking sockets from eventlet.green package
     option_parser.add_option('-c', '--client', default='xcaplib', help=SUPPRESS_HELP)
 
     # Start OpenXCAP server in-process.
     option_parser.add_option('--start-server', metavar='CONFIG_FILE',
                              help="Start an in-process OpenXCAP instance. Requires eventlet. Not very well tested.")
     return option_parser
 
 def process_options(options):
     options.account_name = "test"
     xcapclient.update_options_from_config(options)
     if options.client == 'eventlet':
         enable_eventlet()
         def new_client(self):
             return xcapclient.make_xcapclient(self.options)
         XCAPTest.new_client = new_client
     elif options.client == 'xcaplib':
         pass
     else:
         import xcapclientwrap
         xcapclientwrap.XCAPClient.XCAPCLIENT = options.client
         XCAPTest.new_client = lambda self: xcapclientwrap.make_client(self.options)
     if options.start_server is not None:
         enable_eventlet()
         options.server = InProcessServer(options)
     else:
         options.server = RemoteServer(options)
 
 def run_command(command, options):
     options.server.start()
     try:
         n = options.repeat
         while n!=0:
             n -= 1
             try:
                 command()
             except Exception:
                 if n==0:
                     raise
                 traceback.print_exc()
     finally:
         options.server.stop()
 
 def runSuiteFromModule(module='__main__'):
     option_parser = prepare_optparser()
     suite = loadSuiteFromModule(module, option_parser)
     options, args = option_parser.parse_args()
     process_options(options)
     run_command(lambda : run_suite(suite, options, args), options)
 
 
 class RemoteServer(object):
 
     def __init__(self, options):
         self.options = options
 
     def start(self):
         xcapclient.validate_client_configuration(self.options)
 
     def stop(self):
         pass
 
 class InProcessServer(object):
 
     def __init__(self, options):
         parser = ConfigParser()
         self.config_filename = options.start_server
         parser.read(self.config_filename)
         self.root = parser.get('Server', 'root')
         port = parser.get('Server', 'port')
         if port is not None:
             self.root += ':' + port
         options.xcap_root = self.root
         if not options.sip_address:
             options.sip_address = 'alice@example.com'
         if not options.password:
             options.password = '123'
 
     def start(self):
         print 'STARTING SERVER on %s' % self.root
         start_server(file(self.config_filename))
 
     def stop(self):
         from twisted.internet import reactor
         reactor.callLater(0, reactor.stop)
         from eventlet.api import get_hub
         get_hub().switch()
 
 def enable_eventlet():
     from eventlet.green import urllib2, socket as greensocket, time as greentime
     from xcaplib import httpclient
     # replacing all the references to the old urllib2 in xcaplib:
     httpclient.urllib2 = urllib2
     httpclient.HTTPRequest.__bases__ = (urllib2.Request,)
     global socket, time
     socket = greensocket
     time = greentime
 
 
 def start_server(config_file):
     sys.path = ['../..'] + sys.path
     import xcap
     xcap.__cfgfile__ = config_file
     from xcap.logutil import start_log
     start_log()
     from xcap.server import XCAPServer
     class Server(XCAPServer):
         def run(self, reactor):
             pass
     server = Server()
     server.start()
     return server