This patch adds 'functional' tests that will be run by DSVM gate.
A 'cloudsConfig.js' file reads 'clouds.yaml' and converts it to json.
'clouds.yaml' file is searched from the following locations:
- current directory
- ~/.config/openstack
- /etc/openstack
The first file found wins.
For browser, webpack uses a 'yaml' loader and rewrites
'helper/cloudsConfig.js' requirement to 'json!yaml!clouds.yaml'.
A dummy test has been added to demonstrate use of devstack config.
Change-Id: I55909862c70a4cbe22b2820e51c2969d68d8154a
bf8deba64e