added licensing headers to files

examples/gps.js

@@ -4,6 +4,9 @@ coordinates, detected satellites, timestamps, and altitude
 For best results, try it while outdoors.
 **********************************************************/
 
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/publicdomain/zero/1.0/
+
 var tessel = require('tessel');
 var gps = require('../').use(tessel.port("A"));
 

index.js

@@ -1,3 +1,12 @@
+// Copyright 2014 Technical Machine, Inc. See the COPYRIGHT
+// file at the top-level directory of this distribution.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
 var util = require('util');
 var EventEmitter = require('events').EventEmitter;
 var nmea = require('nmea');