pulseview: bump version to 0.4.0

The patches are now upstream and can be removed. Remove the comment
about Qt4 - it's no longer valid. Add boost-serialization to
dependencies.

Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
6 files changed