Set version to 1.5 and removed zapier webhook.

Author: msallin

release_appveyor.yml

@@ -1,4 +1,4 @@
-version: 1.4.0.{build}
+version: 1.5.0.{build}
 branches:
   only:
   - master
@@ -40,10 +40,4 @@ deploy:
   artifact: Assemblies,NuPkg
   draft: true
   on:
-    branch: master
-notifications:
-- provider: Webhook
-  url: https://zapier.com/hooks/catch/b3cbz0/
-  on_build_success: true
-  on_build_failure: true
-  on_build_status_changed: false
+    branch: master