[Wiki] Add optimizations of proxy usage and logging to release notes
[Wiki] Add optimizations of proxy usage and logging to release notes

Change-Id: I7dbabb80ae5ab980588e21a31650d286dfb3287e

bmwcarit/joynr,bmwcarit/joynr,bmwcarit/joynr,bmwcarit/joynr,bmwcarit/joynr,bmwcarit/joynr,bmwcarit/joynr,bmwcarit/joynr,bmwcarit/joynr