Get rabbit config data from oslo section
Get rabbit config data from oslo section

* Get userid for rabbit
* Get data from oslo section

Change-Id: I860d07093eecb79624c1d52a303374d44a0f29cd
Closes-Bug: #1469389

stackforge/fuel-ostf,eayunstack/fuel-ostf,stackforge/fuel-ostf,eayunstack/fuel-ostf