[Wiki] Minor update in ReleaseNotes
[Wiki] Minor update in ReleaseNotes

Added missing section to the 1.7.0 notes and removed a duplicated
section from the 1.6.3 notes.

Change-Id: I224c239779d500c12af018a9763956a5f912a1c9

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