Add skew to uptime in correct place.

Change-Id: I166a290f63066aa155ecb9fa1ab2e74a37dccb19
fixed assertion - replaced assertEqual with assert
Updates to loading an hvm image. Allow custom params for register request to test 'Platform'. Clean up euproperties.
Pep8 clean up
Create euca2ools wrapped register test method
Add lxml to requires for manifest parsing
Update wget for Machine(), update image utils with additional euca2ools wrappers, add install script for imaging service
adds some integration tests for manipulating object lifecycles
adds some tests for copying objects within the same bucket and across buckets
added simple multi-part-upload tests
cleaned up test and added large data file to use for uploading
HVM detection
Merge remote-tracking branch 'origin/testing' into testing