Update to cfn-flip 1.0.2 (#1003)

cfn-flip 1.0.2 fixes the issue where zero-prefixed strings are not quoted which confuses the CloudFormation service

setup.py

@@ -17,7 +17,7 @@ def readme():
     license="New BSD license",
     packages=['troposphere', 'troposphere.openstack', 'troposphere.helpers'],
     scripts=['scripts/cfn', 'scripts/cfn2py'],
-    install_requires=["cfn_flip>=0.2.5"],
+    install_requires=["cfn_flip>=1.0.2"],
     test_suite="tests",
     tests_require=["awacs"],
     extras_require={'policy': ['awacs']},