Move license text to external file

diff --git a/AnnoyingPopupRemover.lua b/AnnoyingPopupRemover.lua
index 5837448..65f6fde 100644
--- a/AnnoyingPopupRemover.lua
+++ b/AnnoyingPopupRemover.lua
@@ -1,7 +1,7 @@
 -- AnnoyingPopupRemover.lua
 -- Written by KyrosKrane Sylvanblade (kyros@kyros.info)
 -- Copyright (c) 2015-2018 KyrosKrane Sylvanblade
--- Licensed under the MIT License, as below.
+-- Licensed under the MIT License, as per the included file.

 --#########################################
 --# Description
@@ -16,29 +16,6 @@


 --#########################################
---# License: MIT License
---#########################################
---
--- Permission is hereby granted, free of charge, to any person obtaining a copy
--- of this software and associated documentation files (the "Software"), to deal
--- in the Software without restriction, including without limitation the rights
--- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
--- copies of the Software, and to permit persons to whom the Software is
--- furnished to do so, subject to the following conditions:
---
--- The above copyright notice and this permission notice shall be included in
--- all copies or substantial portions of the Software.
---
--- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
--- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
--- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
--- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
--- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
--- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
--- THE SOFTWARE.
-
-
---#########################################
 --# Global Variables
 --#########################################

diff --git a/LICENSE.txt b/LICENSE.txt
index 388b54e..b6a5bef 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -1,3 +1,5 @@
+License: MIT License
+
 Copyright (c) 2015-2018 KyrosKrane Sylvanblade

 Permission is hereby granted, free of charge, to any person obtaining a copy