added git ignore file.
added composer files.
added behat configuration file.
updated deps in composer files. the latest HEAD of the drupal extension apparently doesnt jive with behat 2.5 anymore. fixated on the latest stable.
initial check-in of feature context and homepage feature def.
added headless browser profile and mapped out drupal page regions.
fixed region name in step.
added README file to behat tests dir.
updated headline.
Merge pull request #8 from stopfstedt/behat

added behat tests