Relicense permission for work by steve-o.

RELICENSE/steve-o.md

+# Permission to Relicense under MPLv2
+
+This is a statement by Steven McCoy
+that grants permission to relicense its copyrights in the libzmq C++
+library (ZeroMQ) under the Mozilla Public License v2 (MPLv2).
+
+A portion of the commits made by the Github handle "steve-o", with
+commit author "Steven McCoy", are copyright of Steven McCoy.
+This document hereby grants the libzmq project team to relicense libzmq, 
+including all past, present and future contributions of the author listed above.
+
+Steven McCoy
+2019/02/24