Forwarding headers for ThreadWeaver

[David Faure]

I'm converting all frameworks to ecm_generate_headers, which creates
Framework/File forwarding headers for framework/file.h headers.

But ThreadWeaver creates an issue: it has File.h headers (titlecase),
to be included like Weaver/Job.h

Shall we leave it as is then?
Or convert it to weaver/job.h (lowercase) and Weaver/Job?

Or weaver/Job.h and Weaver/Job? But ecm_generate_header doesn't support non-
lowercase headers so I'm not sure how to do that.

KDE4 had threadweaver/Job.h and ThreadWeaver/Job.

Why was the "Thread" word been removed?

-- 
David Faure, faure at kde.org, http://www.davidfaure.fr
Working on KDE, in particular KDE Frameworks 5