webos.conf: use packagegroup-* names instead of task-*

Open-webOS-DCO-1.0-Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Change-Id: Iec30a9982bba8f425f81cd5f7581a239926707e4
Reviewed-on: http://g2g.palm.com/1100
Reviewed-by: Susan Montooth <susan.montooth@palm.com>
Tested-by: Susan Montooth <susan.montooth@palm.com>
webos-image.bbclass: use packagegroup-* names instead of task-*

Open-webOS-DCO-1.0-Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Change-Id: If9296b52f569e6002055048ae3433523161369ff
Reviewed-on: http://g2g.palm.com/1101
Reviewed-by: Susan Montooth <susan.montooth@palm.com>
Tested-by: Susan Montooth <susan.montooth@palm.com>