Upgrade to pika 1.1.0

Summary:
The pika library used to connect to the broker using the AMQP protocol
has changed method signatures.

Pin the version to ensure API stability.

Test Plan: Tested on WindRiver with pika 1.1.0

Reviewers: dereckson

Reviewed By: dereckson

Differential Revision: https://devcentral.nasqueron.org/D2361