add windows support

[saurabhnanda]

@jappeace curious about the use-case of this? Is anyone really doing serious (i.e. production-level) Haskell development on windows?

[jappeace]

I've a client who uses windows and I use haskell there to avoid having to do things in php. In fact my sneaky plan is to slowly upgrade that php codebase into haskell trough simple links and using the database as an adhoc api. but to do that I'll actually need the libraries to function.

this will also help where people quickly want to test out oddjobs for whatever reason, without having to change OS