[collectd-changes] collectd, the system statistics collection daemon: Changes to 'collectd-5.5'

[Florian Forster]

Rebased ref, commits from common ancestor:
commit 6d3d76ed0f960b830aec394dbcde137be10bef72
Author: Florian Forster <octo at collectd.org>
Date:   Fri Jan 22 09:55:02 2016 +0100

    Bump version to 5.5.1; Update ChangeLog.

commit 441986e1377e358a04e1013757e00a88a55bdd53
Merge: 218c571 03989ac
Author: Marc Fournier <marc.fournier at camptocamp.com>
Date:   Fri Jan 22 09:47:43 2016 +0100

    Merge pull request #1517 from mfournier/systemd-upstart-build-issue
    
    systemd.collectd.service: improve systemd & capabilities explanations

commit 03989ac202e052b39e4b43967a091d49576d3c23
Author: Marc Fournier <marc.fournier at camptocamp.com>
Date:   Thu Jan 21 18:39:51 2016 +0100

    systemd.collectd.service: improve systemd & capabilities explanations
    
    Fixes #1444