Play Framework

[#1744] Added parameter parsing for the command line option --jpda.port=<port number>
Use the framework id when parsing the jpda.port so that we can specify a separate fixed port to use for debugging per mode
Fixed bug where adding the option '-f' would actually always randomise the jpda_port
Add documentation for the following command line options: http.port, https.port, jpda.port and pid_file