adds GPLv3 (#112)

Author: kritzcreek

CHANGELOG.md

@@ -1,5 +1,7 @@
 # CHANGELOG
 
+## 2017-08-17
+- Added a LICENSE file and the appropriate headers
 
 ## 2017-04-20
 - Fixes a bug where large responses would cause psc-ide-send-sync to fail

LICENSE

@@ -1,6 +1,7 @@
 ;;; psc-ide-flycheck.el --- Flycheck support for the purescript language -*- lexical-binding: t -*-
 
 ;; Copyright (c) 2015 The psc-ide-emacs authors
+;; License: GNU General Public License version 3, or (at your option) any later version
 
 ;; Author: Brian Sermons
 ;; URL: https://github.com/epost/psc-ide-emacs

psc-ide-flycheck.el

@@ -1,4 +1,5 @@
 ;;; -*- lexical-binding: t -*-
+;; License: GNU General Public License version 3, or (at your option) any later version
 (require 'json)
 (require 'dash-functional)
 (require 's)

psc-ide-protocol.el

@@ -1,6 +1,8 @@
 ;;; psc-ide.el --- Minor mode for PureScript's psc-ide tool. -*- lexical-binding: t -*-
 
 ;; Copyright (C) 2017 The psc-ide-emacs authors
+;; License: GNU General Public License version 3, or (at your option) any later version
+
 
 ;; Author   : Erik Post <[email protected]>
 ;;            Dmitry Bushenko <[email protected]>

psc-ide.el

@@ -1,9 +1,8 @@
-;; Some extras
+;; License: GNU General Public License version 3, or (at your option) any later version
 
 (require 'compile)
 (require 'purescript-mode) ;; needed for 'purescript-ident-at-point'
 
-
 (add-hook 'purescript-mode-hook
           (lambda ()
             (set (make-local-variable 'compile-command)