Update msi.py and uuids.py for 2.7.9 releases
diff --git a/Tools/msi/uuids.py b/Tools/msi/uuids.py
index 2e4dc31..d8c426a 100644
--- a/Tools/msi/uuids.py
+++ b/Tools/msi/uuids.py
@@ -66,4 +66,6 @@
     '2.7.7121':'{5E0D187D-238B-4e96-9C75-C4CF141F5385}', # 2.7.7rc1
     '2.7.7150':'{049CA433-77A0-4e48-AC76-180A282C4E10}', # 2.7.7
     '2.7.8150':'{61121B12-88BD-4261-A6EE-AB32610A56DD}', # 2.7.8
+    '2.7.9121':'{AAB1E8FF-6D00-4409-8F13-BE365AB92FFE}', # 2.7.9rc1
+    '2.7.9150':'{79F081BF-7454-43DB-BD8F-9EE596813232}', # 2.7.9
 }