This reverts commit c8b441a7.

- Default config file config.json now is gitignored
- Created config.json.example

add mongodb + mongoose and setup db config

Instalação do MongoDB:
1. Baixar arquivos no link http://mongodb.org/downloads.
2. Extrair os arquivos.
3. Criar o diretório de armazenamento dos BDs (default location is **/data/db**) com $ mkdir -p /data/db
4. sudo chown -R $USER /data/db

Para rodar o banco, basta ir até a pasta **bin** do arquivo baixado e rodar o binário **mongod**

Para usar o shell do MongoDB, basta ir até a pasta **bin** do arquivo baixado e rodar o binário **mongo**


See merge request !12

Add school route

Add school routes:

* `/school/:id`: get a school by its identifier
* `/school/state/:id`: get all schools from a state
* `/school/city/:id`: get all schools from a city

See merge request !11

Missing .toParam() method in squel