from bbc microbit library

Fork of nrf51-sdk by Lancaster University

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LICENSE	Wed Apr 06 23:55:04 2016 +0100
@@ -0,0 +1,6 @@
+Many of the files in this module have been inherited from the Nordic SDK for
+nRF51822; they come with a BSD-like license offered by Nordic for use in mbed.
+Some other files come from the mbed SDK, and are licensed under Apache-2.0.
+Unless specifically indicated otherwise in a file, files are licensed
+under the Apache 2.0 license, as can be found in: apache-2.0.txt.
+The BSD-like Nordic license can be found in BSD-3clause-Nordic.txt