start implementing test : bus notification after custom sheets sent
Remove useless import
add skeleton for bus steps in common_bus_steps
add 'listen on the bus' step to bus notification test
implement bus step 'Given I listen on the bus for messages'
fix syntax errors
prepare prerequisite on bus remote access
use xivo_host to ConnectionParameters in common_bus_steps
wip implementation of step reading bus messages
encode strings sent to pika in ascii

since we loooove to stick with ancestral versions of Pika that did not yet handle utf-8
fix data of test on bus notification after custom sheets
first working implementation of step 'then_i_see_a_message_on_bus_...'
wip - allow remote access to bus
disable heartbeat in rabbitmq configuration
modify rabbitmq configuration in prerequisite

goal : allow external access to rabbitmq
remove unused asset file
Merge branch '4747-custom-sheet-on-bus-3'