reviewboard integration

[David Nolden]

2010/7/15 Aleix Pol <aleixpol at kde.org>:
> Nice, I'll use Qjson then, makes sense and more if it's already being used
> in Quanta :).

One more library we depend on, for a seldomly used feature (remember
KDevelop is not only for developing KDE software). I think that's not
very nice. Then the review-board integration should be an optional
plugin, and shouldn't be compiled if qjson headers are not installed.

Greetings, David