EDGEBOX-3380, EDGEBOX-3444:  Have basic Device that works with leshan-standalone.
Update README.md

Added in instructions on how to use the example LeshanDevice.
Changed some of the default values in the example LeshanDevice.
Added client IP binding to LeshanDevice
Update README.md
Merge branch 'java-one-client' into add-leshan-client

Conflicts:
	README.md
	leshan-client/src/main/java/leshan/client/lwm2m/LwM2mClient.java
	leshan-client/src/main/java/leshan/client/lwm2m/resource/LwM2mResourceDefinition.java
	leshan-client/src/main/java/leshan/client/lwm2m/resource/SingleResourceDefinition.java
	leshan-standalone/src/test/java/leshan/server/client/LwM2mClientServerIntegrationTest.java