Fix indentation/alignment and add a license

[adri326]

Since this project's source code seems to be spread out between several projects, I will mention here the issue made on 42Paris/norminette about the tabulation/whitespace madness in norminette.rb:

42Paris/norminette-v2#5

My second point is that you should always give a license to the code that you share.

[jgengo]

Hello,

This client has been written by 42 a long time ago. It's gonna be complicated for me to decide on a license.

But I will fix the tabulations/ident issues.
Thank you for your report.