Simple git

__Added support of downloading the latest boilerplate from github__

All my code is commented, but here is a summup of my strategy:

Module: cloneBones
------------------
This our module, it's a Promise, it will be used to create our theme directory or to clean git, then it will clone the `bones` repository.

I prefered to use clone, cause if something goes wrong with, the bones directory, we would have to do execute:
```
$ git fetch
$ git reset --hard origin/master
$ git pull origin master
```
And if the user delete the `.git` folder, we would have to re-create it., So it's safer, to delete and clone again.

--

Oh and also, I've cleaned some of your files (*~ files).