disable pydot which does not seem to install on windows

dream/platform/__init__.py

@@ -21,7 +21,7 @@ import sys
 import json
 import traceback
 import multiprocessing
-import pydot
+#import pydot
 import os.path
 import logging
 

setup.py

@@ -12,8 +12,8 @@ setup(
         'SimPy>=2,<3',
         'xlrd',
         'xlwt',
-        'pyparsing==1.5.7',
-        'pydot',
+#        'pyparsing==1.5.7',
+#        'pydot',
     ],
     entry_points=("""
     [console_scripts]