update LibBase64-1.0 (Export/Import now fully working)

Please test test test!

ElvUI/Libraries/LibBase64-1.0/LibBase64-1.0.lua

@@ -75,7 +75,9 @@ function LibBase64:Encode(text, maxLineLength, lineEnding)
 	local currentLength = 0
 
 	for i = 1, len(text), 3 do
-		local a, b, c = byte(text, i, i+2)
+		local a = byte(text, i)
+		local b = byte(text, i + 1)
+		local c = byte(text, i + 2)
 		local nilNum = 0
 		if not b then
 			nilNum = 2

ElvUI_Config/Core.lua

@@ -259,7 +259,7 @@ local function ExportImport_Open(mode)
 		local exportButton = AceGUI:Create("Button")
 		exportButton:SetText(L["Export Now"])
 		exportButton:SetAutoWidth(true)
-		local function OnClick(self)
+		local function OnClick()
 			label1:SetText(" ")
 			label2:SetText(" ")