metadata is one word

Change-Id: I2baff95c9b6dcc95edf5d5da74814ff37883cd2b
Add compute keypair commands

Add create, delete, list, show keypair commands

Part of blueprint nova-client

Change-Id: Ieba00d3b3e3a326f875c01ac2a2b9bbd036cd7c9
Merge branch 'tweak-volume' into dt-test
Merge branch 'volume-keystone' into dt-test
Merge branch 'compute-keypair' into dt-test