Replicates issue #1389 from codeception/codeception

Followed instructions setting up demo app, except for:
* _Server: run php artisan serve_
* _Browse to localhost:8000/posts_
* _Enter john@doe.com as username, and password as the password_

.. I simply tried running some tests from the command line. Changed the functional `IndexCept` test to only contain one action and added logging call to the route. 

After running
`vendor/bin/codecept run functional IndexCept.php` 
the test passes just fine, but looking at the log in `app/storage/logs/` shows that a single test run (and call to `amOnPage`) produces two calls to the route.

I'm using ubuntu 14.04 with php 5.4.24. 

I realize this pull request modifies some  existing tests and I'm happy to adjust if needed. Wanted to test if this bug was present without the complication of a workbench package at first. Let me know if I forgot anything!