Index: vcpx/tailor.py
===================================================================
--- vcpx/tailor.py	(revision 486)
+++ vcpx/tailor.py	(revision 489)
@@ -212,7 +212,4 @@
     "Project seems already tailored"
 
-class UnknownProjectError(Exception):
-    "Project does not exist"
-
 class ProjectNotTailored(Exception):
     "Not a tailored project"
Index: vcpx/config.py
===================================================================
--- vcpx/config.py	(revision 479)
+++ vcpx/config.py	(revision 490)
@@ -17,4 +17,6 @@
     """Configuration error"""
 
+class UnknownProjectError(Exception):
+    "Project does not exist"
 
 class Config(SafeConfigParser):
@@ -59,5 +61,9 @@
         """
         if self.has_option(section, option):
-            return SafeConfigParser.get(self, section, option)
+            value = SafeConfigParser.get(self, section, option)
+            if value == 'None':
+                return default
+            else:
+                return value
         else:
             return default
@@ -84,5 +90,5 @@
 
         if not self.has_section(name):
-            raise ConfigurationError("'%s' is not a known project" % name)
+            raise UnknownProjectError("'%s' is not a known project" % name)
 
         return Project(name, self)