Database cleanup does not run after failed tests

[tblakey89]

This is similar to issue #19, only the database cleanup does not occur only when the tests fail when running the command 'rake protractor:spec_and_cleanup'. I am running protractor-rails 0.0.15. Ruby version 2.1.5.

This is my final outputs from a failed test:
...
[2015-05-22 10:32:17] INFO going to shutdown ...
[2015-05-22 10:32:17] INFO WEBrick::HTTPServer#start done.
Exiting
kill left over selenium processes...
Selenium Standalone has exited with code null

This is my final outputs from a passed test:
[2015-05-22 10:39:09] INFO going to shutdown ...
[2015-05-22 10:39:09] INFO WEBrick::HTTPServer#start done.
Exiting
kill left over selenium processes...
Selenium Standalone has exited with code null
rake db:test:prepare to cleanup for the next test session
** Invoke db:test:prepare (first_time)
...etc