[20170517233102] HTTP Proxy support and MySQL versioning

HTTP PROXY

When installing a new rack, users are now able to specify the --http-proxy flag. With the proxy in place, rack will use it for all outbound requests.

convox install --http-proxy http://example.com:9000

MySQL Versioning

In addition to setting the default engine version to 5.7.16, which has broader region support, the --version option has been added to specify an ideal version if needed.

convox resources create mysql --version  5.7.10

Pull Requests