[JS] add dependency for exithook
[JS] add dependency for exithook

this is used in ProcessManager to call joynr.shutdown() to shut down
properly in case of an error

Change-Id: I716c5c4086fd0fd23e9ba485a3917e06da623316

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