This patch unconditionally applies the labeling of sessions and thereby
removes the most common use case of 'Child_policy::filter_session_args'.
Furthermore, the patch removes an ambiguity of the session labels of
sessions created by the parent of behalf of its child, e.g., the PD
session created as part of 'Child' now has the label "<child-name>"
whereas an unlabeled PD-session request originating from the child
has the label "<child-name> -> ". This way, the routing-policy of
'Child_policy::resolve_session_request' can differentiate both cases.
As a consequence, the stricter labeling must now be considered wherever
a precise label was specified as a key for a session route or a server-
side policy selection. The simplest way to adapt those cases is to use a
'label_prefix' instead of the 'label' attribute. Alternatively, the
'label' attribute may used by appending " -> " (note the whitespace).
Fixes#2171
We now always run the input_merger as Input service provider and
configure backends suitable for the used platform. On x86 hardware, we
enable both, PS/2 and USB HID.
The RAM quota currently dedicated to the wm and decorator components in
the 'qt5_common.inc' file is too low for a window of size 1920x1080.
Fixes#1761
Setting explicit routes for Nitpicker's 'Framebuffer' and 'Input' sessionsi
avoids ambiguities if a Qt application provides these services, too.
Fixes#1316
