feat(cli.stage): Adds stage add command
chore(AppDirectory): Refactor directories to helper
chore(Templates): Adds template helper
feat(spec): Adds rspec test for stage cmd
feat(bootstrap_spec): Adds bootstrap install spec
feat(cli.env): Add bulk command from rbenv-vars file

Conflicts:
	lib/negroku/cli.rb
fix(bootstrap_spec): Add locale files
feat(stage): Allow to add envs after stage add
fix(cli): Adds missing require
feat(env): Allow to pass the stage name
Merge pull request #81 from platanus/79-improve-stage-creation

improve stage creation close #79