Buildbot: Add a scheduler for the master branch to run

test/buildbot/buildbot_config/master/schedulers.py

@@ -3,5 +3,12 @@ This module contains the logic which returns the set of
 schedulers to use for the build master.
 """
 
+from buildbot.changes.filter import ChangeFilter
+from buildbot.schedulers.basic import SingleBranchScheduler
+
 def get_schedulers():
-    return []
+    full = SingleBranchScheduler(name="full",
+                                 change_filter=ChangeFilter(branch="master"),
+                                 treeStableTimer=60,
+                                 builderNames=["vagrant-master"])
+    return [full]