Attempts to declare default rules from VPC
Normalize all rules into one set of ingress rules

Also add some looping / etc for more common errors I saw while creating
VPCs.
Merge pull request #25 from vjanelle/cloudcaster_default_sg_rules

Attempts to declare default rules from VPC.  LGTM.  vpc timeout/retry won't work as expected, but that's overall changes that need to go into CC.
multiple address assignment

fixes issue where existing address may have been reassigned
now revert behaviour where addrs are reassigned
Merge pull request #26 from WrathOfChris/cm-elasticip-assignment

Cm elasticip assignment
Attempt to do re-discovery on cache miss
Merge pull request #28 from vjanelle/nets_stuff

Attempt to do re-discovery on cache miss.
thx