Chrome crashing when running Plugin-Functional Tests locally

[Carthanial]

• Upon running node scripts/functional_test_runner.js --config test/plugin_functional/config.js chrome crashes.

This error is the same as issue #111 however the difference is slight.

• Locally the error is

warn Failure loading service "leadfoot"
ERROR [POST http://localhost:9515/session / {"desiredCapabilities":{},"requiredCapabilities":{}}] unknown error: Chrome failed to start: crashed

The desiredCapabilities and requiredCapabilities are empty which should be filled from browserOptions{ chromeOptions{}} in leadfoot_command.js.
The above mentioned issue was fixed by adding the needed chromeOptions however in our current state those options are alredy present.

Fixing this is essential to further debugging the test failures in job #159. This will allow running the tests in a non headless mode to identify the exact moment of the failure in each test.