v3.0

There was significant progress since v2.2.2.
Yet it would require more polish, and some functionality is in transfer (#493).
So users happy with their earlier version should wait for the next release.
It has been one year since last release, and there's the ubuntu LTS train to catch (still looking for a packager...).

Lots of files changed, so it is advised to uninstall in the previous version source tree.
NameHasNoOwner is a known symptom for stray files.

Summary
Thanks to all contributors (either code or feedback) !
If a PR is linked to an issue, only the issue is listed. In case of leftovers, please comment over there.

Commits details, split in parts for clarity (+github display limit of 250 commits exceeded):
part 1, waf upgrade, part 2, hamster rename, part 3, part 4