TAG_11082016_MASTER

Changing the pgoapi tag on requirements.txt (#5791)

The tag set '1a112879f424b518f994b99f43859dd95cd43fdf' is not the right tag that pgoapi devs set on their branch... and when you use it, it will say: `Could not find a tag or branch '1a112879f424b518f994b99f43859dd95cd43fdf', assuming commit.`

And `pip` will not update your `pgoapi` copy...