Add deprecation warnings and provide links to new APIs
JCLOUDS-317: Add missing states to Nova v2 Server

- Deprecated state: STOPPED
- Add states:   MIGRATING, SHUTOFF, RESCUE, SOFT_DELETED,
                SHELVED, SHELVED_OFFLOADED
JCLOUDS-503 - Missing c3.large from AWSEC2HardwareSupplier
Correcting 4-space indent in openstack/nova/v2_0/domain/Server.java

Follow-up to 222779b