Add Fuel Master host entry to /etc/hosts during install
Add Fuel Master host entry to /etc/hosts during install

RabbitMQ will fail to start if it cannot resolve the hostname
for itself, so this will cover the case where a user skips
fuelmenu.

Change-Id: I9a08716b03d3c3aa3b1c87592172d29b062502e2
Related-Bug: #1538509

stackforge/fuel-main,stackforge/fuel-main,SergK/fuel-main,stackforge/fuel-main,SergK/fuel-main,SergK/fuel-main