Temporary disable ZServer by default. You can enable it by setting...

Temporary disable ZServer by default. You can enable it by setting start_zserver environment variable to 1.

The reason is that it always set values to portal_activities.distributingNode and portal_activities._nodes.
Before r28043, this didn't happen if self.tic wasn't called, and some projects expects that these variables are unset.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@28054 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/tests/ERP5TypeTestCase.py

@@ -693,6 +693,7 @@ class ERP5TypeTestCase(PortalTestCase):
                 from Products import DeadlockDebugger
               except ImportError:
                 pass
+              if int(os.environ.get('start_zserver', 0)):
                 from Testing.ZopeTestCase.utils import startZServer
                 ZopeTestCase._print('Running ZServer on port %i\n'
                                     % startZServer()[1])