Introduce Component.state -> Context.state hash
AmazonEC2: note use of host property as future-state
Use state instead of custom lock/stucture for Ubuntu.first_apt?
Set hashdot_updated state; for use in Iyyov/Daemon

-- Hashdot detects an install or profile change (for example an
   updated jruby version) and sets host[:hashdot_updated] with these
   changes.
-- Iyyov restart if :hashdot_updated to pick up a jruby change
-- IyyovDaemon restart if :hashdot_updated to pick up a jruby change
Replace Space.host_names use with simple Space.get_host
Add --ssh-session support to CLI
Drop CLI -I short option for infrequently used --import-hosts
AmazonEC2 rdoc tweak