Merge pull request #51 from webOS-ports/tofe/work

PowerMenu: minor aethetic adjustments
Rework takeScreenShot service method to be functional

Signed-off-by: Simon Busch <morphis@gravedo.de>
Implement service API for set/get the current focused application

Signed-off-by: Simon Busch <morphis@gravedo.de>
Rework for LunaService API changes and add subscription support for getFocusApplication

Signed-off-by: Simon Busch <morphis@gravedo.de>
Merge pull request #52 from webOS-ports/morphis/work

Morphis/work
WindowManager: fix code for tap action service

Signed-off-by: Christophe Chapuis <chris.chapuis@gmail.com>
Tests: improve a bit the visual appearance of the DummyWindow, and prepare the field for method registering testing

Signed-off-by: Christophe Chapuis <chris.chapuis@gmail.com>
Tests: adapt stubs to the new message system (with payload)

Signed-off-by: Christophe Chapuis <chris.chapuis@gmail.com>