[Qt-creator] Plugin to display compile errors warnings etc. inline

[Liebe Markus (RtP2/TEF72)]

> I introduced a *TaskHub* which essentially emits all the task
> related signals
> the buildmanager had, and also the new signals you need.

Nice! I am already using the new TaskHub and it works like a charm. Thanks!

I think the TaskHub will make the creation of other plugins like one to show //TODO or //FIXME lines in the taskwindow even easier.

Regards,

Markus