Add basic structure of rules.
Add better comments.
Add days rule.
Add is_export rule.
Move rules inside rgc dir.
Criando setup.py
Adicionando peimeiro requirements.txt e ajuste no gitignore
Fix some bugs
Add tests.
Merge pull request #6 from sievetech/feature/implement-rules

Implementa regras
Criando o main inicial com o comando basico
Fazendo setup para ficar instalavel
Merge pull request #7 from sievetech/feature/base_command

Feature/base command
Add license file.
Add vim *.swp to gitignore.
Add more info to README. Still lacking library and rule docs.
Teste simples para a opção --help
Add library use info to README.
Make README a github-flavoured markdown file (suck it, distutils).
Validate the presence of os.environ variables