Send private networking option when creating a new instance.  Use private ip if available for instance description
removed debugging puts statement
12.04.3 is no longer a valid image
temporarily use my fork/branch of fog so we have updated digital ocean regions
raise an exception if private networking is enabled but the configured region doesn't support it
add tests for private_networking configuration option
use proper fog repo now that updated digital ocean mocking is in master
removed unneeded whitespace
updated digital ocean region list
added note about new private_networking flag
remove the region from the test envs to make what's being tested a little more clear
Default Digital Ocean instances to New York 2 since private_networking is supported there
Handle potential private_networking string values better
Merge pull request #474 from davebenvenuti/digital_ocean_private_networking

Digital ocean private networking