Warbler deployment to development environment

Warbler supports passing the environment on the command line, so if you do:

   warble war RAILS_ENV=development

and deploy the .war, it will use the development database connection, etc.

Multiple Gem Repositories

Found an easier way:  the -i option for gem install creates a new repository.  Just install a gem into an empty directory, and it creates a new repository (for example:  gem install rake -i new_repository) .  Just point GEM_HOME and/or GEM_PATH to the new repository, add the bin subdirectory to your PATH, and you're good to go.