Library for external multiwindow managers

Change-Id: I3ead780aa0735948a6757938d521af2f2b3130a5
Signed-off-by: Dariusz Kluska <dariusz.kluska@tieto.com>
Merge "Library for external multiwindow managers" into tieto/jabol
Handling window focus in limited way

Decor is highlighted only for active window. It is not fully workable.
Please see comments inside the code.

Change-Id: I9e7fa33c6c844f8471e7d207f11bacf66d4b9902
Signed-off-by: Dariusz Kluska <dariusz.kluska@tieto.com>
Merge "Handling window focus in limited way" into tieto/jabol