Force recreation of test db and migrate plugins during rake ci.

lib/tasks/ci.rake

@@ -13,8 +13,10 @@ namespace :ci do
   desc "Setup Redmine for a new build."
   task :setup do
     Rake::Task["ci:dump_environment"].invoke
+    Rake::Task["db:drop"].invoke
     Rake::Task["db:create"].invoke
     Rake::Task["db:migrate"].invoke
+    Rake::Task["db:migrate_plugins"].invoke
     Rake::Task["db:schema:dump"].invoke
     Rake::Task["test:scm:update"].invoke
   end