Just a test...

Revision:
0:6b1a8c783fef
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os.lib	Mon Jul 23 23:09:43 2018 +0000
@@ -0,0 +1,1 @@
+https://github.com/armmbed/mbed-os/#50bd61a4a72332baa6b1bac6caccb44dc5423309