fix the broken windows things

- s/home/home_dir/g or else jenkins::node_windows just fails to compile
- the winsw wrapper moved a long time ago and 404s now
- java_home most likely has spaces on windows
Introduce a new attribute that controls what user account jenkins slave runs as on windows.
Merge pull request #61 from opscode-cookbooks/OC-9615

New parameter to control the user account jenkinsslave service runs as on windows.