[JENKINS-23665] Parameter to select alias of SSL/TLS certificate for
Jenkins Web UI, private key password
In case the KeyStore password and the KeyPassword are not the same, the
KeyManagerFactory needs the KeyPassword because it will access the
individual key(s)
Backward compatibility in case httpsPrivateKeyPassword is not set at all
Merge pull request #16 from TorstenS73/master

[FIXED JENKINS-23665] Parameter to select alias ...