http header value should not contain newlines.

that will raise an exception with Python 2.7.10.

bt5/erp5_web_shacache/TestTemplateItem/portal_components/test.erp5.ShaCacheMixin.py

@@ -48,7 +48,7 @@ class ShaCacheMixin(object):
     self.shacache.publish()
     self.header_dict = {
       'Content-Type': 'application/json',
-      'Authorization': 'Basic %s' % (base64.encodestring('ERP5TypeTestCase:'))
+      'Authorization': 'Basic %s' % (base64.encodestring('ERP5TypeTestCase:').strip())
     }
     self.shacache_url = self.shacache.absolute_url()
     self.tic()

bt5/erp5_web_shadir/TestTemplateItem/portal_components/test.erp5.ShaDirMixin.py

@@ -72,7 +72,7 @@ class ShaDirMixin(object):
 
     self.header_dict = {
       'Content-Type': 'application/json',
-      'Authorization': 'Basic %s' % (base64.encodestring('ERP5TypeTestCase:'))
+      'Authorization': 'Basic %s' % (base64.encodestring('ERP5TypeTestCase:').strip())
     }
 
     module = self.portal.web_site_module