Minor optimization and tweaks.

Omen.lua

@@ -54,7 +54,7 @@ LSM:Register("sound", "Omen: Aoogah!", [[Interface\AddOns\Omen\aoogah.ogg]])
 -----------------------------------------------------------------------------
 -- Localize some global functions
 local floor, format = floor, format
-local tinsert, tremove, sort, wipe = tinsert, tremove, sort, wipe
+local tinsert, tremove, next, sort, wipe = tinsert, tremove, next, sort, wipe
 local UnitDetailedThreatSituation = UnitDetailedThreatSituation
 local UnitExists, UnitGUID, UnitName, UnitClass = UnitExists, UnitGUID, UnitName, UnitClass
 local UnitIsPlayer, UnitPlayerControlled, UnitCanAttack = UnitIsPlayer, UnitPlayerControlled, UnitCanAttack
@@ -1091,12 +1091,11 @@ function Omen:UpdatePartyGUIDs()
 	end
 
 	local _
-	for k, v in pairs(guidClassLookup) do
-		guidClassLookup[k] = nil
-	end
-	if UnitGUID("player") then
-		guidNameLookup[UnitGUID("player")] = UnitName("player")
-		_, guidClassLookup[UnitGUID("player")] = UnitClass("player")
+	local me = UnitGUID("player")
+	wipe(guidClassLookup)
+	if me then -- Because it sometimes is nil on zoning/logging in.
+		guidNameLookup[me] = UnitName("player")
+		_, guidClassLookup[me] = UnitClass("player")
 	end
 	if UnitExists("pet") then
 		guidClassLookup[UnitGUID("pet")] = "PET"
@@ -1126,9 +1125,9 @@ function Omen:UpdatePartyGUIDs()
 			end
 		end
 	end
-	guidNameLookup["AGGRO"] = L["> Pull Aggro <"]
 	guidClassLookup["AGGRO"] = "AGGRO"
 end
+guidNameLookup["AGGRO"] = L["> Pull Aggro <"]
 
 
 -----------------------------------------------------------------------------
@@ -1559,7 +1558,7 @@ do
 	Omen_TitleDropDownMenu.displayMode = "MENU"
 	Omen_TitleDropDownMenu.initialize = function(self, level)
 		if not level then return end
-		for k in pairs(info) do info[k] = nil end
+		wipe(info)
 		if level == 1 then
 			-- Create the title of the menu
 			info.isTitle      = 1
@@ -1593,6 +1592,7 @@ do
 			info.func = function()
 				testMode = not testMode
 				Omen:UpdateBars()
+				LibStub("AceConfigRegistry-3.0"):NotifyChange("Omen")
 			end
 			info.checked = testMode
 			info.tooltipTitle = L["Test Mode"]