Merge pull request #311 from travis-ci/fix_sentry_errors

Fix sentry errors

lib/travis/api/app/responders/atom.rb

@@ -21,7 +21,7 @@ module Travis::Api::App::Responders
     <updated><%= ::DateTime.parse(build.updated_at.to_s).rfc3339 %></updated>
     <summary type="html">
     &lt;p&gt;
-      <%= build.commit.message.encode(:xml => :text) %> (<%= build.commit.committer_name %>)
+      <%= build.commit.message.encode(:xml => :text) if build.commit.message %> (<%= build.commit.committer_name %>)
       &lt;br/&gt;&lt;br/&gt;
       State: <%= build.state %>
       &lt;br/&gt;

lib/travis/features.rb

@@ -123,7 +123,7 @@ module Travis
     end
 
     def owner_key(feature, owner)
-      suffix = owner.class.table_name
+      suffix = owner.class.table_name if owner
       "#{key(feature)}:#{suffix}"
     end
 

lib/travis/model/job.rb

@@ -174,6 +174,7 @@ class Job < Travis::Model
     end
 
     def normalize_config(config)
+      config = YAML.load(config) if config.is_a? String
       config = config ? config.deep_symbolize_keys : {}
 
       if config[:deploy]