* euca-run-instances:
- --keypair => --key in usage and man page, LP: #530816
- print error rather than trace on invalid instance-count, LP: #546420
- euca-describe-instances: output "running", not "running ", LP: #531453
* euca-revoke: only show usage once with --help
* euca-download-bundle: fix usage, LP: #546567
* euca-bundle-image:
- fix failure on --block-device-mapping, LP: #546548
- print usage on --help if userid has '-', LP: #546526
- fix failure when image name string is in dest string, LP: #522060
* euca-describe-image-attribute: fix --kernel or --ramdisk when
image did not have emi or eri, LP: #546551