ryantate13

Closes #27

**Describe the bug** As referenced [elsewhere](https://github.com/bbc/sqs-producer/issues/49) the types that the send method supports in typescript projects are `string` and `string[]`, and that is how my team is attempting to use...

fix /usr/bin/env: 'node\r': No such file or directory

5

Use Unix line endings on cli.js to fix crash on Linux