Merge pull request #16 from louridas/master

use new recommended structure
Modifies .gitignore

- Ignore backend/config/local.json
- Ignore backend/config/development.json
- Ignore backend/config/production.json
Merge branch 'master' of https://github.com/skanct/agora
Merge pull request #17 from skanct/master

Modifies .gitignore
- Model for a User in order to login/register
Merge pull request #18 from cmarinos/master

- Model for a User in order to login/register
fix directory structure