Updated openstack/openstack
Project: openstack/tempest  62ca1013fcd1c0aca503988779ac45a59750116a
null
Change to use absolute path in load_template()

If we execute the tempest in other path other than the root path of
tempest, the case will failed because can't find the template files.

Change-Id: Ic585546270b2c6d7a42d3128d752217d8d4e3860
Closes-bug: 1300597