Removes sails
Move to express
Moves configuration to a json struct

- Supports the definition of environments via NODE_ENV
- Default environment 'development'
- For the tests it copies example.json to development.json
- Adds {development,production}.json to .gitignore
Fixes the configuration for the tests

- Downloads the selenium server from Pithos

  When trying to download the selenium-server via npm or curl, the server
  returns zero data. As a result the jar is stored as an empty file. As a
  temporary workaround I have placed the jar file on Pithos and I am
  downloading it manually before the tests start.

- Moved command to copy the example configuration to .travis.yml
Merge pull request #15 from skanct/move_to_express

Move to express
use new recommended structure
fix according to new structure
Merge pull request #16 from louridas/master

use new recommended structure