fixing PHPUnit setup for php 7 and documenting its usage with PHPStorm
moving content of folder 7.x up to the repository root
reorganizing drupal sub repository: sparate folders per version 5.x, 6.x & 7.x
displaying polytomous keys (addons to #2152)
displaying polytomous keys (fixes #2152)
debugging phpUnit tests in eclipse PDT
phpUnit tests