adding missing attributes from port node.
Edited NMapProperties.java to add Windows support to Nmap4j. Over the Windows platform Nmap is usually installed in C:\Program Files (x86)\Nmap so, to launch it, you don't need to set the --datadir parameter as on Linux or Mac. Tests have been made on Windows7 both by passing the Nmap path to Nmap4j and by setting the environment variable NMAP_HOME. Changes to be committed:

Signed-off-by: jsvede <jsvede@yahoo.com>
Removing dead code. Removed the validateOS() method since we're adding
windows support with the previous commit.
Merge branch 'master' of git://git.code.sf.net/p/nmap4j/code