(GH-27) Use pre-release version of Wyam Recipe

Author: gep13

Diff for: recipe.cake

@@ -1,4 +1,4 @@
-#load nuget:https://www.nuget.org/api/v2?package=Cake.Wyam.Recipe&version=0.8.0
+#load nuget:https://www.myget.org/F/cake-contrib?package=Cake.Wyam.Recipe&version=0.9.0-unstable0005&prerelease
 
 Environment.SetVariableNames();
 
@@ -9,7 +9,8 @@ BuildParameters.SetParameters(context: Context,
                             repositoryName: "adnuguk.github.io",
                             appVeyorAccountName: "adnuguk",
                             webHost: "aberdeendevelopers.co.uk",
-                            shouldPurgeCloudflareCache: true);
+                            shouldPurgeCloudflareCache: true,
+                            masterBranchName: "source");
 
 BuildParameters.PrintParameters(Context);