[DB][Test] Adds a solution and docs to get a DB for behat tests
[Behat] Fixed a typo
Merge pull request #14 from kimu/db-support

[DB, Test] Adds a solution and docs to get a DB for behat tests
[test][phpunit] Solution to get screenshot on failure for phpunit+mink tests. Refactors also FeatureConcext in the way it gets screenshot on failure.