Revert "s/list-keys/keys/ and s/get-key/key/ for sdc-user"
Revert "s/list-keys/keys/ and s/get-key/key/ for sdc-user"

This reverts commit e22fdc74659c2302362f8686e0d4e3fe0b42c1a8.

13W/node-smartdc,andyYatskov/node-smartdc,dan-luk/node-smartdc,joyent/node-smartdc,arekinath/node-smartdc