Error reporting refinement + Ensuring :db and :app servers
Added check for at least one :app role server
Added check for :db role in issues/20
proper rails_env now shows in cap STDOUT
better error reporting for username creation
ReadMe changes
Added check for at least one :app role server
Added check for :db role in issues/20
proper rails_env now shows in cap STDOUT
better error reporting for username creation
ReadMe changes