[FIX] handle SSL connectors correctly when using standalone version

fixes the standalone HTTP Server problem with SSL connections
--> also improves/fixes logging, as there were only one port printed to log even with multiple connectors
--> The `-h` option now sets the port of the first connector it finds (either SSL encrypted or not) to the command-line provided port. This is kind of random, but it also does not make sense to use `-h` if you have multiple connectors (which you configured in `jetty.xml` anyway). But it allows to set the port using `-h` even if you have just one SSL encrypted connector.