compositor: introduce management of transientParent property

Signed-off-by: Christophe Chapuis <chris.chapuis@gmail.com>
compositor: don't create a window in surfaceMapped if there is already one existing (after hide/show for example)

Signed-off-by: Christophe Chapuis <chris.chapuis@gmail.com>
compositor: remove useless setPaintEnabled, already managed by the window

Signed-off-by: Christophe Chapuis <chris.chapuis@gmail.com>
plugins: rename StatusBarServicesConnector as statusBarServicesConnector to facilitate QML desktop debugging

Signed-off-by: Christophe Chapuis <chris.chapuis@gmail.com>
Merge pull request #52 from webOS-ports/tofe/work

Tofe/work