Changes

Fixing Javascript minification by switching to the closure compiler
Signed-off-by: James Sutton <james.sutton@uk.ibm.com>

Using GitHub syntax highlighting
Simple change that was put forward in Pull Request #68 without a signed
CLA

Removing incorrect slash at start of topics
There should not be a slash at the start of any topics.

Adding Code of Conduct
Original take from here:
https://eclipse.org/org/documents/Community_Code_of_Conduct.php

Brings Paho one step closer to be supported in non-browser environments.
(#153)
* Fix global object
 Signed-off-by: Manuel Iglesias <manuelig@amazon.com>

* Remove references to self
 Signed-off-by: Manuel Iglesias <manuelig@amazon.com>

* Fix arguments conversion to array
 Signed-off-by: Manuel Iglesias <manuelig@amazon.com>

* Use simple in-memory fake of localStorage when global one is not
available
 Signed-off-by: Manuel Iglesias <manuelig@amazon.com>

Updating version to 1.1.0 for Eclipse Photon
Signed-off-by: James Sutton <james.sutton@uk.ibm.com>