Dark Reprimand Icon for Penance (Power of the Dark Side)

What it does
------------
When Power of the Dark Side empowers Penance, the Penance action-bar icon is
replaced with the old Dark Reprimand icon. When the proc is gone, normal
Penance returns.

Designed for WoW Retail 12.1.0 (Midnight / Curse of Ula'tek).

Install
-------
1. Put the folder "DarkReprimandIcon" into:
   World of Warcraft\\_retail_\\Interface\\AddOns\\

2. Type /reload ingame

Commands
--------
/dri test      Preview the Dark Reprimand icon without waiting for a proc.
/dri debug     Print detection state to chat.
/dri on        Enable the addon.
/dri off       Disable the addon.
/dri strict    Disable the 12.1 Penance-proc-glow fallback.
/dri fallback  Re-enable the fallback (default).

Action bars
-----------
Supports Blizzard action bars and includes compatibility scanning for common
Bartender4, Dominos and ElvUI action buttons.