Test for Python UTF-7 issues

[phihag]

See http://rspeer.github.io/blog/2014/03/30/unicode-deadbeef/ for context

[phihag]

Oktay is working on this.

[rliebig]

Just a question - if Oktay is working on this, why isn't he assigned?

[phihag]

Oktay wasn't a member of the webvulnscan team. Rectified that. However, he is not sure whether he'll be able to implement the UTF-7 scan within the time frame of his Bachelor thesis.

[osarier]

Unfortunately I was not able to make it in time.