unicode_literal compatibility

[stephenhelms]

Swagger operation decorator can't handle unicode strings for its keyword arguments. Crashes at line 319 due to thinking a unicode string is an object.

[sobolevn]

Thanks for your feedback, will fix it soon.

[lukyoung]

when it will be fixed?

[mserralta]

@stephenhelms @lukyoung could you attach the problematic decorator calling to see if my patch can do the trick...??

[mserralta]

Notice in master branch this is resolved. You could patch your code until new tag is released...