Resolve "Add RabbitMQ for MessageBus triggers"

Closes #1 (closed)

\approve @ds @gislars

Dockerfile

@@ -14,6 +14,5 @@ RUN apt-get update \
 WORKDIR /tmp
 RUN git clone https://github.com/omniti-labs/pg_amqp.git
 WORKDIR /tmp/pg_amqp
-RUN ln -s /usr/bin/postgres_real /usr/bin/postgres \
-    && make \
+RUN make \
     && make install