replace Ace3v with Ace3 ElvUI-TBC version

or easy tracking of code difference

ElvUI_Config/Libraries/AceGUI-3.0/widgets/AceGUIWidget-Button.lua

@@ -6,31 +6,28 @@ local Type, Version = "Button", 23
 local AceGUI = LibStub and LibStub("AceGUI-3.0", true)
 if not AceGUI or (AceGUI:GetWidgetVersion(Type) or 0) >= Version then return end
 
-local AceCore = LibStub("AceCore-3.0")
-
 -- Lua APIs
 local pairs = pairs
 
 -- WoW APIs
-local _G = AceCore._G
+local _G = _G
 local PlaySound, CreateFrame, UIParent = PlaySound, CreateFrame, UIParent
 
 --[[-----------------------------------------------------------------------------
 Scripts
 -------------------------------------------------------------------------------]]
--- arg1 is the button for OnClick event
-local function Button_OnClick()
+local function Button_OnClick(frame, ...)
 	AceGUI:ClearFocus()
 	PlaySound("igMainMenuOption")
-	this.obj:Fire("OnClick", 1, arg1)
+	frame.obj:Fire("OnClick", ...)
 end
 
-local function Control_OnEnter()
-	this.obj:Fire("OnEnter")
+local function Control_OnEnter(frame)
+	frame.obj:Fire("OnEnter")
 end
 
-local function Control_OnLeave()
-	this.obj:Fire("OnLeave")
+local function Control_OnLeave(frame)
+	frame.obj:Fire("OnLeave")
 end
 
 --[[-----------------------------------------------------------------------------
@@ -54,7 +51,7 @@ local methods = {
 			self:SetWidth(self.text:GetStringWidth() + 30)
 		end
 	end,
-	
+
 	["SetAutoWidth"] = function(self, autoWidth)
 		self.autoWidth = autoWidth
 		if self.autoWidth then