Job Generation will also modify the default Devstack URL

This is basically a revert of a previous change.
Merge pull request #29 from matelakat/include-devstack-url-in-generated-job

Job Generation will also modify the default Devstack URL
Replace branch type in job to allow separate trunk/ctx published branches
Merge branch 'master' of https://github.com/citrix-openstack/qa
JEOS_URL could be specified to speed up devstack.