Amend license to provide appropriate attribution

sauloperez · sauloperez · commit 04013dfc2316 · 2017-10-05T09:12:47.000+02:00
As asked by the new Redbooth's CTO @mpillar
diff --git a/LICENSE.txt b/LICENSE.txt
@@ -1,6 +1,7 @@
 The MIT License (MIT)
 
-Copyright (c) 2015 Pau Pérez
+Copyright for portions of Departure are held by Redbooth, Inc., 2015-2017. All
+other copyright for Departure are held by Pau Pérez, 2017.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
