Merge pull request #1 from CiscoSystems/master

Middle September repo update
One installer for Devstack with multi node support.
One installer for Devstack with multi node support.
Merge remote-tracking branch 'origin/master'

Conflicts:
	tools/deployers/install_devstack.py
Merge remote-tracking branch 'origin/master'

Conflicts:
	tools/deployers/install_devstack.py
Merge remote-tracking branch 'origin/master'

Conflicts:
	tools/deployers/install_devstack.py
Merge pull request #84 from aalekov1/master

Multi node support for install_devstack.py