KDE Observatory applet and data engine moved to kdereview

[Sandro Andrade]

Hi there,

KDE Observatory applet and data engine were moved to kdereview.

New features:
- New data engine for KDE Observatory applet.
- Performance improvements: gather data from a consolidated commit
database instead of scanning kde-commits archives.
- Filter reports by date range.
- Krazy reports enhancements.

Applet:
----------
Previous location: KDE/kdeplasma-addons/applets/kdeobservatory
Review: kdereview/plasma/applets/kdeobservatory
Final location: KDE/kdeplasma-addons/applets/kdeobservatory

Data Engine:
------------------
Previous location: playground/base/plasma/dataengines/kdeobservatory
Review: kdereview/plasma/dataengines/kdeobservatory
Final location: KDE/kdeplasma-addons/dataengines/kdeobservatory

Thanks,
Sandro