[WIP] Add TravisBranchMonitor

Worker that is in charge of monitoring Travis for build_failures, and
will create BuildFailure records and send messages to gitter as needed.

app/workers/travis_branch_monitor.rb

@@ -0,0 +1,29 @@
+require 'travis'
+
+class TravisBranchMonitor
+  include Sidekiq::Worker
+  sidekiq_options :queue => :miq_bot_glacial, :retry => false
+
+  include Sidetiq::Schedulable
+  recurrence { hourly.minute_of_hour(0, 15, 30, 45) }
+
+  include SidekiqWorkerMixin
+
+  def perform
+    if !first_unique_worker?
+      logger.info "#{self.class} is already running, skipping"
+    else
+      process_repos
+    end
+  end
+
+  def process_repos
+    enabled_repos.each { |repo| process_repo(repo) }
+  end
+
+  def process_repo repo
+  end
+
+  def process_branch branch
+  end
+end