Adding Python3 support, work from Isaul Vargas included in this patch

Signed-off-by: AutomatedTester <dburns@mozilla.com>
Adding python version meta data to setup
Unignoring tests that pass locally in Chrome
Ignoring back a test method that was unignored in the previous commit by
mistake
Merge remote-tracking branch 'upstream/master'

* upstream/master:
  Ignoring back a test method that was unignored in the previous commit by mistake
  Unignoring tests that pass locally in Chrome
  Adding python version meta data to setup
  Adding Python3 support, work from Isaul Vargas included in this patch