Rafael Ristovski 88041783e6 Add missing <functional> include. ...

Compiling under Linux fails because of a missing include directive
Ref:
http://en.cppreference.com/w/cpp/utility/functional/bind
http://en.cppreference.com/w/cpp/utility/functional/placeholders

2017-04-19 22:11:12 +02:00

..

gui

…

logic

Add missing <functional> include.

2017-04-19 22:11:12 +02:00