Changes since tag v4.1.17

commit 34a04d1a13de9600bc711f410fce3e1763828102
Author: Hendrik Leppkes <h.leppkes@gmail.com>
Date:   Thu Jun 29 11:55:24 2017 +0200

    Support partial soul shards for destruction warlocks

commit 70df3d35c33c1a35e47d31198a9885a84ed341c8
Author: Hendrik Leppkes <h.leppkes@gmail.com>
Date:   Thu Jun 29 11:10:01 2017 +0200

    Update to use Enum.PowerType instead of SPELL_POWER_* constants

