transferred Code Ocean from original repository to GitHub

db/migrate/20140903165113_create_errors.rb

@@ -0,0 +1,9 @@
+class CreateErrors < ActiveRecord::Migration
+  def change
+    create_table :errors do |t|
+      t.belongs_to :execution_environment
+      t.text :message
+      t.timestamps
+    end
+  end
+end