Includes the following changes:
* Security cleanup - remove use of insecure functions
* Windows 8/8.1/2012 R2 support to sysinfo
* VS 2013 upgrade
* Command dispatcher refactor
* Getproxy command added (needs MSF side too)
This makes x86 more consistent with x64.
Also replaces a bunch of instances of:
File.join(Msf::Config.install_root, 'data', ...)
with the simpler
File.join(Msf::Config.data_directory, ...)
[See rapid7/meterpreter#19]