Enhancement: README

 * to document setup, add some links
 * to please @lsmith77
Bugfix: now with a 100% psr2
Feature: support environment variables

 * the naming conventions follows the AWS Cli tool: http://docs.aws.amazon.com/cli/latest/userguide/cli-chap-getting-started.html
 * this feature is especially interesting for buils on Travis-CI :)
Merge pull request #1 from easybiblabs/topics/eyecandy

Topics/eyecandy
Update README.md