Test publishing

Revision:
1:d7a2c59f768f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os.lib	Thu Jan 03 11:53:28 2019 +0100
@@ -0,0 +1,1 @@
+https://github.com/ARMmbed/mbed-os/#6a0a86538c0b9b2bfcc4583b1e2b7fea8f4e71e9