acrylamid deploy exits with 0 even if an internal command fails

[liljenstolpe]

acrylamid deploy reports success, even if a command it calls fails...

The following is the output of a travis-ci job

The command "acrylamid compile" exited with 0.

$ acrylamid deploy
    execute  s3cmd sync --delete-removed $OUTPUT_DIR/ $DEPLOY_DIR --access_key=$S3_ACCESS_KEY --secret_key=$S3_SECRET_KEY 

Usage: s3cmd [options] COMMAND [parameters]

s3cmd: error: no such option: --access_key

The command "acrylamid deploy" exited with 0.

Done. Your build exited with 0.