JCLOUDS-389: Updated license headers, broken links, and fixed minor whitespace issues
Revert compute examples back to use RestContext until Nova is unasynced
Change example to use Ubuntu
Change example to use Ubuntu and SSD
Minor changes to compute-basics after code review

Follow-up to c223b771
Prefer Guava IO helpers
Prefer ByteSource over String Payload
Consistently gather and emit blob metadata
Remove O(container) call to BlobStore.countBlobs
Updating the examples after the 1.7.2 release

Also aligning POMs
JCLOUDS-346: Update Rackspace Cloud Files Examples