Tracker client shouldn't announce on startup

[mkg20001]

OS: Linux

Bundle: Git

Steps to Reproduce:

1. Start the node
2. Add many zites
3. Restart

Affected Component(s): zite, common

Expected Results:

The tracker client only announces on discovery or through the announce loop

Actual Results:

The tracker client announces on creation which causes a client overload if the client has more than 20 zites

Other information:

[mkg20001]

Regression
Additionally (node:11279) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 update listeners added. Use emitter.setMaxListeners() to increase limit occurs