Ensure that the database gets created before prepared

Otherwise it will error on Travis CI

Author: tvdeyen

Rakefile

@@ -33,8 +33,7 @@ namespace :alchemy do
       system <<-BASH
 cd spec/dummy
 export RAILS_ENV=test
-bin/rake db:environment:set
-bin/rake db:migrate:reset
+bin/rake db:create db:environment:set db:migrate
 bin/rails g alchemy:devise:install --force
 cd -
 BASH