Updating all of the vagrant and the go and whatnot

to match my latest expectations of how this stuff should work :P
Might as well update the Travis go version bits, too!
Trying to make Travis happy :D
Attempting to use the s3 deployer instead of travis-artifacts
Deploying to branch and description on S3 as well

like before, just way more verbose :smiley_cat:
Merge pull request #17 from modcloth-labs/vagrant-touchup

Vagrant, Go, and Travis touchup