Metasploit: Update to v4.7.2

This patch updates Metasploit to v4.7.2 (the latest stable version on https://github.com/rapid7/metasploit-framework/releases at the moment).

@thoughtpolice Would you mind taking a look at this? Armitage is not included with Metasploit anymore. Any ideas what should be done? Maybe http://www.darkoperator.com/installing-metasploit-framewor/#install-armitage is of help.

Ref. #21990.