Merge pull request #2559 from michicc/master

RELICENSE: Grant from michicc

RELICENSE/michicc.md

+# Permission to Relicense under MPLv2 or any other OSI approved license chosen by the current ZeroMQ BDFL
+
+This is a statement by Michael Lutz
+that grants permission to relicense its copyrights in the libzmq C++
+library (ZeroMQ) under the Mozilla Public License v2 (MPLv2) or any other 
+Open Source Initiative approved license chosen by the current ZeroMQ 
+BDFL (Benevolent Dictator for Life).
+
+A portion of the commits made by the Github handle "michicc", with
+commit author "Michael Lutz <michi@icosahedron.de>", are copyright of Michael Lutz.
+This document hereby grants the libzmq project team to relicense libzmq, 
+including all past, present and future contributions of the author listed above.
+
+Michael Lutz
+2017/05/01