Add some stuff from PE w/ Metasploit paper on ExploitDB

[WebBreacher]

http://www.exploit-db.com/wp-content/themes/exploit/docs/18229.pdf

[wchen-r7]

That, and needs coverage about using post modules :-)

[WebBreacher]

Shouldn't this and the other Metasploit content be moved to https://github.com/pwnwiki/msfwiki? @mubix? @wchen-r7?

[mubix]

Somewhat. Module usage definitely goes over there, but technique is what PwnWiki is all about (small distinction I know)

[tekwizz123]

Found an additional bit of info from http://think-security.com/automatic-routing-through-new-subnets/ on printing the metasploit routing table. Just commenting here for reference.

[tekwizz123]

Fixed with commits #98 and #99