Updated msi upgrade handling to include 8.0 family pre-release versions

Author: Piotr Obrzut

packaging/WiX/connector-cpp.wxs.in

@@ -51,7 +51,7 @@
       <Upgrade Id="@UPGRADE_CODE_OLD@">
         <?if '@PATCH_VERSION@' != '0'?>
           <UpgradeVersion 
-            Minimum="@MAJOR_VERSION@.@MINOR_VERSION@.11"
+            Minimum="@MAJOR_VERSION@.@MINOR_VERSION@.0"
             IncludeMinimum="yes"
             Maximum="@MAJOR_VERSION@.@[email protected]"
             IncludeMaximum="no"