legal: address more EMO review comments

* Add copyright headers to XML and YAML files
    * Add (tm) to the first mention of Eclipse MRAA in the README
    * Rename COPYING to LICENSE.md per the standard Eclipse requirement

Signed-off-by: Alex T <alext.mkrs@gmail.com>

.travis.yml

@@ -1,3 +1,11 @@
+# Copyright (c) 2015 Intel Corporation and others
+#
+# This program and the accompanying materials are made available under the terms
+# of the MIT license which is available at
+# https://projects.eclipse.org/license/mit-license-mit.
+#
+# SPDX-License-Identifier: MIT
+
 dist: trusty
 sudo: required
 

DoxygenLayout.xml

@@ -1,3 +1,13 @@
+<!--
+Copyright (c) 2014 Intel Corporation
+
+This program and the accompanying materials are made available under the terms
+of the MIT license which is available at
+https://projects.eclipse.org/license/mit-license-mit.
+
+SPDX-License-Identifier: MIT
+-->
+
 <doxygenlayout version="1.0">
   <!-- Generated by doxygen 1.8.7 -->
   <!-- Navigation index tabs for HTML output -->

README.md

@@ -2,7 +2,7 @@
   <img src="http://iotdk.intel.com/misc/logos/mraa.png" height="150px" width="auto" algt="MRAA Logo"/>
 </p>
 
-Eclipse MRAA - Low Level I/O Communications Library for GNU/Linux Platforms
+Eclipse MRAA™ - Low Level I/O Communications Library for GNU/Linux Platforms
 ===========================================================================
 
 Eclipse MRAA (Libmraa) is a C/C++ library with bindings to Java, Python and JavaScript

docker-compose.yaml

@@ -1,3 +1,11 @@
+# Copyright (c) 2017 Intel Corporation and others
+#
+# This program and the accompanying materials are made available under the terms
+# of the MIT license which is available at
+# https://projects.eclipse.org/license/mit-license-mit.
+#
+# SPDX-License-Identifier: MIT
+
 version: '2.1'
 
 services: