Merge pull request #4 from c4ssio/master

added default ec2 region to tests, fixed travis
Merge pull request #5 from c4ssio/master

set broaded env variables for test in ec2
trying to get env variables noticed by travis
moving towards separate models for ssh and deploys
changed deploy to transfer
got rid of ssh model, moved func to ec2 and user
set up transfer test
tests passing w transfer