Drop permissions for com.palm.mojo-systemui app

Signed-off-by: Simon Busch <morphis@gravedo.de>
Enables us to include more than one root directory

Signed-off-by: Simon Busch <morphis@gravedo.de>
Add the default wallpapers directory

Signed-off-by: Simon Busch <morphis@gravedo.de>
Prepare for also extract meta data from image files

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