> One last question; Is it possible to install git on a webhosting I have at example hostgator.com?

I don't know. This really depends on your host. Maybe somebody else here will know?..

If you can't install git on the host, but can copy files, then you can try running git on your own machine to get the source code and then copy the tree to your host.

You will definitely need node.js to run Parsoid, and it must be node.js 0.8 or 0.10.