Remove domain tests

Removes remnant of former Foreman integration.
Fixing errata tests

Fixing errata tests to respect `--repo_id` option being required.
Ignore .idea files
Escape search query variables
Add --services option

To set different machine with services than localhost. Url or IP is
accepted.

`helper` renamed to `helper.sh`.
Add --pause option

`--pause` flag if set will pause system-test execution until ENTER is
pressed. This allows a developer to investigate each bug before continuing
to another.
Better command and output formatting on failure.
Merge pull request #31 from pitr-ch/story/foreign-keys

Story/foreign keys