postinstall script (uses most recent primus-live 'enhancement')

This mod will allow a simple good clean build on ms-win that needs to use a compiler to build platform specific binarys such as engine.io or serialport. It will pass these flags down into primus-live which is driving the version of npm that is doing the heavy lifting for housemon.

Until the primus-live change is updated on npmjs.org, update the primus-live dependancy of housemon to use the github version directly.

    "primus-live": "git://github.com/TheDistractor/primus-live.git"
or
    "primus-live": "git://github.com/jcw/primus-live.git"
(if the pull has been incorporated).