Merge pull request #172 from tazim/master

clubbed StackedSubscriptions tests together
stop service before upgrade, start after it
added new test fo activation key
added new properties for upgrade from CDN
configure repos for headpin
Merge remote-tracking branch 'upstream/master'
removed unnecessary stop start
Merge pull request #176 from hhovsepy/master

added new test case, fixed deltacloud headping install, integrated CFSE upgrade to CDN