Add AppVeyor/Travis notifications to ASF chat

.travis.yml

@@ -10,3 +10,9 @@ mono:
 
 notifications:
   email: false
+  webhooks:
+    urls:
+      - https://webhooks.gitter.im/e/df82484f12510c3f2516
+    on_success: always  # options: [always|never|change] default: always
+    on_failure: always  # options: [always|never|change] default: always
+    on_start: never     # options: [always|never|change] default: always

appveyor.yml

@@ -6,4 +6,11 @@ clone_depth: 10
 build:
   project: ArchiSteamFarm.sln
   parallel: true
-  verbosity: minimal
+  verbosity: minimal
+notifications:
+- provider: Webhook
+  url: https://webhooks.gitter.im/e/6cc89e76555ee263cc11
+  method: POST
+  on_build_success: true
+  on_build_failure: true
+  on_build_status_changed: true