Migrate to MIT license

Adapted to the MIT license migration of the main "Nord" (1) project.
Detailed information can be found in the main task ticket.

All license SVG badges and the "LICENSE.md" content have been updated.
In addition all source code comment header have also been simplified.

References:

* (1) https://github.com/arcticicestudio/nord

Subtask of nordtheme/nord#55
GH-19

README.md

@@ -119,6 +119,6 @@ Please report issues/bugs, feature requests and suggestions for improvements to
 
 <p align="center"><img src="https://cdn.rawgit.com/arcticicestudio/nord/develop/src/assets/banner-footer-mountains.svg" /></p>
 
-<p align="center"> <img src="http://arcticicestudio.com/favicon.ico" width=16 height=16/> Copyright &copy; 2017 Arctic Ice Studio</p>
+<p align="center">Copyright &copy; 2017-present Arctic Ice Studio</p>
 
-<p align="center"><a href="http://www.apache.org/licenses/LICENSE-2.0"><img src="https://img.shields.io/badge/License-Apache_2.0-5E81AC.svg?style=flat-square"/></a> <a href="https://creativecommons.org/licenses/by-sa/4.0"><img src="https://img.shields.io/badge/License-CC_BY--SA_4.0-5E81AC.svg?style=flat-square"/></a></p>
+<p align="center"><a href="https://github.com/arcticicestudio/nord-tmux/blob/develop/LICENSE.md"><img src="https://img.shields.io/badge/License-MIT-5E81AC.svg?style=flat-square"/></a> <a href="https://creativecommons.org/licenses/by-sa/4.0"><img src="https://img.shields.io/badge/License-CC_BY--SA_4.0-5E81AC.svg?style=flat-square"/></a></p>

nord.tmux

@@ -1,18 +1,13 @@
 #!/usr/bin/env bash
-# +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# title Nord tmux TPM Loader +
-# project nord-tmux +
-# repository https://github.com/arcticicestudio/nord-tmux +
-# author Arctic Ice Studio +
-# email development@arcticicestudio.com +
-# copyright Copyright (C) 2017 +
-# +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-#
-# [References]
-# Nord
-# https://github.com/arcticicestudio/nord
-# tmux
+# Copyright (c) 2017-present Arctic Ice Studio <development@arcticicestudio.com>
+# Copyright (c) 2017-present Sven Greb <code@svengreb.de>
+
+# Project: Nord tmux
+# Repository: https://github.com/arcticicestudio/nord-tmux
+# License: MIT
+# References:
 # https://tmux.github.io
+
 NORD_TMUX_COLOR_THEME_FILE=src/nord.conf
 NORD_TMUX_VERSION=0.2.0
 NORD_TMUX_STATUS_CONTENT_FILE="src/nord-status-content.conf"

src/nord-status-content-no-patched-font.conf

@@ -1,11 +1,10 @@
-# +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# title Status Content - No Patched Font +
-# project nord-tmux +
-# repository https://github.com/arcticicestudio/nord-tmux +
-# author Arctic Ice Studio +
-# email development@arcticicestudio.com +
-# copyright Copyright (C) 2017 +
-# +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Copyright (c) 2017-present Arctic Ice Studio <development@arcticicestudio.com>
+# Copyright (c) 2017-present Sven Greb <code@svengreb.de>
+
+# Project: Nord tmux
+# Repository: https://github.com/arcticicestudio/nord-tmux
+# License: MIT
+
 #+----------------+
 #+ Plugin Support +
 #+----------------+

src/nord-status-content.conf

@@ -1,11 +1,10 @@
-# +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# title Status Content +
-# project nord-tmux +
-# repository https://github.com/arcticicestudio/nord-tmux +
-# author Arctic Ice Studio +
-# email development@arcticicestudio.com +
-# copyright Copyright (C) 2017 +
-# +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Copyright (c) 2017-present Arctic Ice Studio <development@arcticicestudio.com>
+# Copyright (c) 2017-present Sven Greb <code@svengreb.de>
+
+# Project: Nord tmux
+# Repository: https://github.com/arcticicestudio/nord-tmux
+# License: MIT
+
 #+----------------+
 #+ Plugin Support +
 #+----------------+

src/nord.conf

@@ -1,12 +1,10 @@
-# +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# title Nord tmux +
-# project nord-tmux +
-# version 0.2.0 +
-# repository https://github.com/arcticicestudio/nord-tmux +
-# author Arctic Ice Studio +
-# email development@arcticicestudio.com +
-# copyright Copyright (C) 2017 +
-# +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Copyright (c) 2017-present Arctic Ice Studio <development@arcticicestudio.com>
+# Copyright (c) 2017-present Sven Greb <code@svengreb.de>
+
+# Project: Nord tmux
+# Repository: https://github.com/arcticicestudio/nord-tmux
+# License: MIT
+
 #+----------------+
 #+ Plugin Support +
 #+----------------+