upstart: backport patch from upstream upstart to enable rebootcmd functionality

See https://bazaar.launchpad.net/~xnox/upstart/rebootcmd/revision/1433 for more details.

Open-webOS-DCO-1.0-Signed-off-by: Simon Busch <morphis@gravedo.de>
packagegroup-webos-ports-extended: add gstreamer and it's openmax plugin

Signed-off-by: Simon Busch <morphis@gravedo.de>
packagegroup-webos-ports-extended: add pulseaudio-misc

Signed-off-by: Simon Busch <morphis@gravedo.de>
qt4-webos: enable desktop services

Desktop services are required by qt-mobility to determine various system paths.

Signed-off-by: Simon Busch <morphis@gravedo.de>
qt-mobility-webos: add component based on recipe from oe-core

Signed-off-by: Simon Busch <morphis@gravedo.de>
webkit-webos: enable video support through qtmultimedia

Signed-off-by: Simon Busch <morphis@gravedo.de>