Swift updates

* Move swift ahead of glance in upgrade order as glance depends on swiftclient
* Add some test files to Javelin project Swift storage
* Remove call to swift_init()
  * (re)Create cache dir
  * (re)Mount backing disk
* Restore the Swift port defaults

Change-Id: I14c1d50c13563cbc5fbb71de014e318951b6f62b
Merge branch 'nova-clean' into dt-test