Merge pull request #20 from diogodadalt/master

Adicionando o suporte a escopos aninhados
Merge pull request #21 from diogodadalt/master

Pull Request
Merge pull request #22 from diogodadalt/master

Buscando arquivos para a etapa 5
preparando pasta para a etapa 5
Merge branch 'master' of https://github.com/diogodadalt/compiladores
Merge branch 'master' of git://github.com/lucaslazari/compiladores
multidimensional
criada classe ILOC que representa uma linha de comando ILOC. Falta implementar o resto dos métodos
Merge pull request #23 from mauriciojrsilva/master

Multidimensional array
Merge branch 'master' of git://github.com/lucaslazari/compiladores
Refactoring in node class