Allow user_data in configuration
implement :disabled override flag
fallback ssh host to server.private_ip_address
Allow getting credentials from environment variables

Amazon's EC2 tools use the environment variables AWS_ACCESS_KEY and
AWS_SECRET_KEY to store credentials. This commit allows vagrant-aws to
get credentials in the same way, reducing the risk of leaking them by
removing the need to store them in the Vagrantfile.
Fix typo in docs
Merge pull request #40 from commandtab/fix_docs_typo

Fix trivial typo in README
Merge pull request #33 from kmrhb/aws-env-vars

Allow getting credentials from environment variables
Merge pull request #30 from tralamazza/issue_14

fallback ssh host to server.private_ip_address
Update CHANGELOG
Merge pull request #29 from tralamazza/issue_28

implement :disabled override flag for shared folders
Update CHANGELOG
Update README
Merge pull request #26 from a13m/userdata

Allow user_data in configuration
Update CHANGELOG
v0.1.3
Update version for dev