d-pointer Node

Change-Id: I57da99c63b41106402b1991e7f2abeceea0680c7
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>
Reduce the debug output for now

Change-Id: I4d9532a87012a99e4ab4074d743baa0162bcf4ac
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>
d-pointer and clean up Entity

Change-Id: Ia224ebb66ce41b72244d66d384d702a8721369d5
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>
Remove empty destructor

Change-Id: Icc6e9549046d14a87a402a9e2c764129c875c17d
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>