remove obsolete MissingEnvironmentVariableError()

Signed-off-by: Nico Schottelius <nico@brief.schottelius.org>

lib/cdist/__init__.py

@@ -44,16 +44,6 @@ class Error(Exception):
     """Base exception class for this project"""
     pass
 
-
-class MissingEnvironmentVariableError(Error):
-    """Raised when a required environment variable is not set."""
-
-    def __init__(self, name):
-        self.name = name
-
-    def __str__(self):
-        return 'Missing required environment variable: ' + str(self.name)
-
 def file_to_list(filename):
     """Return list from \n seperated file"""
     if os.path.isfile(filename):

lib/cdist/emulator.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 #
-# 2011 Nico Schottelius (nico-cdist at schottelius.org)
+# 2011-2012 Nico Schottelius (nico-cdist at schottelius.org)
 #
 # This file is part of cdist.
 #