Initial commit
Add gemspec
Add Gemfile
Add DataBase class for retrieve tenants.
Add Redis class for retrieve tenants.
Add ConnectionHandler changes the behaivor of ActiveRecord.
Add Manager to manage tenants.
Changes the behaivor of ActiveRecord to use multiple databases.
Added automatic switching behaivor between tenants.
Add Railtie.
Update README file.
Change variable name disabled_middleware to disable_middleware.
Add test to connection_handler.
Add test to data_base.
Add test to redis class.
Add test to manager.
Change method establish_connection on multi_tenant.rb
Update tests manager_test.rb
Refactor test files.
Refactor test redis_test.rb