KeepAlive example incorrect

[zman0900]

It seems #752 was a breaking change for how KeepAlive must be enabled. Previously, KeepAlive::setKeepAliveInterval would actually start the KeepAlive thread, so it could be (or had to be?) called after calling SSHClient::connect. Now, it appears the thread is only started from SSHClient::onConnect, which is called during SSHClient::connect. So if the keep alive interval is not pre-set before calling connect, the thread never starts.

The net.schmizz.sshj.examples.KeepAlive class should be changed to show setting the interval before connecting.

[jkosternl]

@zman0900 , please close this issue, as the PR is merged, which fixes the issue. Thanks!

[hierynomus]

I'll close the issue indeed as the examples have been updated.