Add migration for manual actions with skipped status

db/migrate/20170306090835_migrate_legacy_manual_actions.rb

+class MigrateLegacyManualActions < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def up
+    execute <<-EOS
+      UPDATE ci_builds SET status = 'manual', allow_failure = true
+        WHERE ci_builds.when = 'manual' AND ci_builds.status = 'skipped';
+    EOS
+  end
+
+  def down
+    execute <<-EOS
+      UPDATE ci_builds SET status = 'skipped', allow_failure = false
+        WHERE ci_builds.when = 'manual' AND ci_builds.status = 'manual';
+    EOS
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20170217151947) do
+ActiveRecord::Schema.define(version: 20170306090835) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"