AWS S3 sync command

[Chrystinne]

This pull request adds a prefix to the generated AWS S3 sync command, including the project slug, and version.

[bemoody]

We want to avoid putting logic in template files whenever we can. Use Python functions and classes to define what information should be shown, and use templates to define how it should be displayed as HTML.

Also, a <pre> element should not contain unnecessary whitespace, and must not contain block elements such as <p>.

Instead of putting more logic into published_project.html, try defining a method in the AWS class that returns the S3 URI for the project.

class AWS(models.Model):
    ...
    def s3_uri(self):
        if self.is_private:
            return f's3://{self.bucket_name}/{self.project.version}/'
        else:
            return f's3://{self.bucket_name}/{self.project.slug}/{self.project.version}/'

Then in the template file we can simply write:

              <pre class="shell-command">aws s3 sync {{ project.aws.s3_uri }} DESTINATION</pre>

[Chrystinne]

Thanks, @bemoody!

[bemoody]

Thanks! But please don't make changes in unrelated files (physionet-django/console/templates/console/manage_published_project.html). Please make that change in a separate pull request.