IdP V4 Installer

[Rod Widdowson]

> In the installer's log which ends up in the console. More precisely this
> line:
> 
> > DEBUG [net.shibboleth.idp.installer.V4Install:234] - Creating /home/user/Downloads/test_idp4/conf/idp.properties from
> /home/user/Downloads/test_idp4/dist/conf/idp.properties and {idp.entityID=https://mymachine.switch.ch/idp/shibboleth,
> idp.sealer.keyPassword=mypassword, idp.sealer.storePassword=mypassword, idp.scope=switch.ch}

The canonical solution is that we only emit passwords at TRACE and hide them at DEBUG.  I'll make a note in the relevant case.

Thanks

	Rod