windows clone updates

I had some issues pulling the code on win7, so i have updated the git-clone-others.bat and the URL in the README.md
Ideally, we want to use git@github.com:droolsjbpm/ if it's someone with commit access and https://github.com/droolsjbpm for anonymous clones. The reason is that HTTP is slower (and for big repo's it wasn't reliable in 2011 - not sure now)