Set up gerritbot for airship projects

This patchset configures the airship projects to receive
gerrit updates in the #airshipit IRC channel.

Change-Id: I328ab0a11230616b017348370b941849b9ccb677

accessbot/channels.yaml

@@ -61,6 +61,8 @@ global:
 
 # Individual channel configuration:
 channels:
+  - name: airshipit
+    mask: full_mask
   - name: ara
   - name: cloudkitty
   - name: congress

gerritbot/channels.yaml

@@ -1,4 +1,14 @@
 # This file is sorted alphabetically by channel name.
+airshipit:
+  events:
+    - patchset-created
+    - change-merged
+    - x-vrif-minus-2
+  projects:
+    - ^openstack/airship-.*
+  branches:
+    - master
+
 ara:
   events:
     - patchset-created