Updated problems to be more in line with conventions

Problem12.lua

@@ -1,11 +1,11 @@
 --ProjectEUler/lua/Problem12.lua
 --Matthew Ellison
 -- Created: 02-07-19
---Modified: 03-28-19
+--Modified: 06-19-20
 --What is the value of the first triangle number to have over five hundred divisors?
 --All of my requires, unless otherwise listed, can be found at https://bitbucket.org/Mattrixwv/luaClasses
 --[[
-	Copyright (C) 2019  Matthew Ellison
+	Copyright (C) 2020  Matthew Ellison
 
 	This program is free software: you can redistribute it and/or modify
 	it under the terms of the GNU Lesser General Public License as published by
@@ -26,7 +26,7 @@ require "Stopwatch"
 require "Algorithms"
 
 
-timer = Stopwatch:create();
+local timer = Stopwatch:create();
 timer:start();
 
 GOAL_DIVISORS = 500;