0.11.57b merge (#569)

* bye, greenwall

* Add Monk class color and improve error handling for extra rules

- Added support for Monk class color in CLASS_COLOR_BY_NAME.
- Enhanced error handling in Hardcore.lua to check for existence of extra rules before accessing them.
- Updated version information in .toc files to 0.11.57b.
- Documented changes in the changelog for version 11.57b.

* Fix variable initialization in AceGUI layout function

Author: zdeyn

CharacterStatusScreen.lua

@@ -9,6 +9,7 @@ local CLASS_COLOR_BY_NAME = {
 	["PALADIN"] = "F48CBA",
 	["ROGUE"] = "FFF468",
 	["DEATHKNIGHT"] = "C41E3A",
+	["MONK"] = "00FF96",
 	["GENERAL"] = "FFFFFF",
 }
 local AceGUI = LibStub("AceGUI-3.0")