Use Ruby 1.9+ (required by Rails 3.2+)
rvm use 1.9.3
Annotate models via
bundle exec annotate --position before
backup/save tips; move to db/setup/uits/data.txt and commit to git
backup/save users
heroku run rake export_users --app tipp
update app on heroku
$ git push tipp
reset db on heroku
$ heroku pg:reset DATABASE_URL --confirm tipp
rebuild db on heroku
$ heroku run rake db:migrate --app tipp
run db seed on heroku
$ heroku run rake db:seed SETUP=uits --app tipp
restore tips on heroku
$ heroku run rake load_uits_data --app tipp
restore users on heroku; paste backup data into /jobs
restart. done.