Add windows splunk forwarder

Added logic for installing forwarder on windows.

Fixes #4 
![You are technically correct. The best kind of correct](https://cloud.githubusercontent.com/assets/413832/4983116/fa4a0608-6917-11e4-8f8a-b5af706202d0.png)
:+1: for keeping the 32/64 bit branching.