Changed new script generation tools (getexp) to ignore DIFF environment variable

getexp

@@ -39,6 +39,10 @@ if invalid_args:
 # Read and store configuration info from input and experiments' library
 # Store environment as default for control settings, then add config from files
 
+# Hack to allow use in diffexp
+if os.environ.has_key('DIFF'):
+    del os.environ['DIFF']
+
 try:
     config = ExpConfig(experiment_config_name,
                        dict(map(lambda x: x.split('=', 1), sys.argv)))