Linter: Check end-of-lines at the end of files
Linter: Check end-of-lines at the end of files

Trailing newlines in non-empty files are a common UNIX idiom, with
several benefits. Git complains when you omit them. As well as the
GitHub web interface does. Let's lint this.

[1]: http://eslint.org/docs/rules/eol-last.html

scality/Arsenal,scality/Arsenal