fix: ssh keypair names should include realm and cluster name

Squashed commit of the following:

commit cef6df75ee50f5c8be7ea763b8938e069633867a
Author: Chris Howe <howech@infochimps.com>
Date:   Wed Mar 19 11:55:15 2014 -0500

    Added a full_cluster_name method that includes the realm name and the cluster name

    Change-Id: Ifbf8c184090d2d809ca3850803d0d7cdc6ff96d8

Change-Id: I6621ed898f867a5388409da6da1856d16bad2c76
fix: component security group corrections

1. Security groups shouldn't be created if 'create_security_groups' is
   unset. This will protect us from creating too many rules in VPC.
2. The component class needed some updates for real realms. This was
   the source of some spurious security groups.

Change-Id: Ie9f55e3da4aad81b5bcb2943848d18d057937fe2
version bump to 6.0.3

Change-Id: I7704fbe77ea21de185a2f0f31d9fa6ded7d02b34
Merge "fix: ssh keypair names should include realm and cluster name"