Software Público Brasileiro

The ICSE 2018 Software Engeneering in Practice Track page (
http://www.icse2018.org/track/icse-2018-Software-Engineering-in-Practice)
specify the use of ACM's template. But do not specify which class to
use. ACM's page specifies the following regarding this case:

"Most proceedings authors (including ICPS authors) will use the
"sigconf" proceedings template. If you are unsure which template variant
to use, please request clarification from your event or publication
contact."

Thus until we get clarification on this matter I've set the template to
sigcon.

I've got the authors info from other articles in this repository.

The section names and its presence/absence are not part of the template.
I've just set a standard article format that we should modify as the
article evolves.